{"id":7741,"date":"2026-06-25T12:24:33","date_gmt":"2026-06-25T12:24:33","guid":{"rendered":"https:\/\/jxlampshade.com\/lamp-holder-bulb-cap-sizes\/"},"modified":"2026-06-26T02:08:47","modified_gmt":"2026-06-26T02:08:47","slug":"tamanos-de-la-tapa-del-casquillo-de-la-bombilla-del-portalamparas","status":"publish","type":"page","link":"https:\/\/jxlampshade.com\/es\/lamp-holder-bulb-cap-sizes\/","title":{"rendered":"Tama\u00f1os de portal\u00e1mparas: E27 vs E26 vs B22 vs E14 (Gr\u00e1fico)"},"content":{"rendered":"<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"itemListElement\": [\n        {\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/jxlampshade.com\/\"},\n        {\"@type\":\"ListItem\",\"position\":2,\"name\":\"Glass Lamp Shades\",\"item\":\"https:\/\/jxlampshade.com\/glass-lamp-shades\/\"},\n        {\"@type\":\"ListItem\",\"position\":3,\"name\":\"Lamp Holder & Bulb Cap Sizes\"}\n      ]\n    },\n    {\n      \"@type\": \"Article\",\n      \"headline\": \"Lamp Holder & Bulb Cap Sizes: E27 vs E26 vs B22 vs E14\",\n      \"description\": \"A full reference to lamp holder and bulb cap\/base sizes \u2014 E27, E26, B22, E14, E12, GU10 \u2014 with diameters, regions, compatibility, and how the holder relates to a glass shade fitter.\",\n      \"author\": {\"@type\":\"Organization\",\"name\":\"JX Lampshade\"},\n      \"publisher\": {\"@type\":\"Organization\",\"name\":\"JX Lampshade\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\/\/jxlampshade.com\/logo.png\"}},\n      \"datePublished\": \"2026-06-25\",\n      \"dateModified\": \"2026-06-25\"\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\"@type\":\"Question\",\"name\":\"What is the difference between E27 and E26 bulbs?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"E27 and E26 are both medium Edison screw caps and look almost identical. E27 has a 27mm diameter and is the standard in Europe, the UK and most of Asia (230V); E26 is 26mm and is the North American standard (120V). The 1mm difference means they will usually thread together, but you should match the bulb's voltage to your supply \u2014 never put a 120V E26 bulb on 230V mains.\"}},\n        {\"@type\":\"Question\",\"name\":\"Are E26 and E27 interchangeable?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Mechanically, mostly yes \u2014 the 1mm difference usually lets an E26 bulb thread into an E27 holder and vice versa. Electrically, you must match the voltage: use 120V-rated bulbs on 120V supply (North America) and 220\u2013240V-rated bulbs on 230V supply (Europe\/UK\/Asia). For permanent fixtures and certification, always use the holder and bulb rated for your region.\"}},\n        {\"@type\":\"Question\",\"name\":\"What does E27 mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"E27 means an Edison screw cap with a 27mm thread diameter. The 'E' stands for Edison (screw-type), and the number is the diameter in millimetres. It is the most common bulb base worldwide outside North America.\"}},\n        {\"@type\":\"Question\",\"name\":\"What is a B22 bayonet cap?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"B22 (also called BC, bayonet cap) is a 22mm push-and-twist bulb base used mainly in the UK and former Commonwealth countries. Instead of threading, it has two pins that lock into the holder with a quarter turn. The small version is B15 (SBC).\"}},\n        {\"@type\":\"Question\",\"name\":\"How do I know what bulb holder I have?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Look at how the old bulb attaches: a threaded (screw-in) base is an Edison cap \u2014 measure its diameter (about 27mm = E27, 26mm = E26, 14mm = E14). A base with two side pins you push and twist is a bayonet \u2014 about 22mm = B22, 15mm = B15. Two thin pins is a GU\/G type. The cap code is also usually printed on the old bulb.\"}},\n        {\"@type\":\"Question\",\"name\":\"Does the bulb holder affect which lamp shade fits?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Indirectly. The bulb holder (E27, B22, etc.) determines the bulb, while a separate fitter \u2014 spider\/harp, ring, or glass fitter neck \u2014 holds the shade. On many European fittings a ring shade sits on the holder, so the holder size matters; on glass pendants the shade has its own fitter neck independent of the bulb. Always confirm both the holder and the shade fitter when ordering.\"}}\n      ]\n    }\n  ]\n}\n<\/script><\/p>\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,500;9..144,600;9..144,700;9..144,900&family=DM+Sans:wght@300;400;500;600;700&display=swap');\n:root{\n  --bg: #FAF7F2;\n  --bg-glass: #F5F1E8;\n  --bg-dark: #1A1614;\n  --bg-darker: #0F0C0A;\n  --text: #1A1614;\n  --text-muted: #6B6560;\n  --text-light: #FAF7F2;\n  --accent: #B8864A;\n  --accent-dark: #8C6435;\n  --accent-light: #D4A574;\n  --border: #E5DFD5;\n  --border-dark: #2A2522;\n  --seo-bg: #FFF9E6;\n  --seo-border: #E8B85A;\n  --seo-text: #5A4214;\n}\n.jxg-guide *{ margin: 0; padding: 0; box-sizing: border-box; }\n.jxg-guide{ font-family: 'DM Sans', -apple-system, sans-serif; background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }\n.jxg-guide .container{ max-width: 1240px; margin: 0 auto; padding: 0 32px; 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animation: pulse 2s infinite; }<\/p>\n<p>@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(107,229,113,0.7);} 70% { box-shadow: 0 0 0 12px rgba(107,229,113,0);} 100% { box-shadow: 0 0 0 0 rgba(107,229,113,0);} }<\/p>\n<p>@media (max-width: 1024px) {.jxg-guide .nav-main{ display: none; }\n.jxg-guide .pillar-hero .container{ grid-template-columns: 1fr; gap: 36px; }\n.jxg-guide .split-grid{ grid-template-columns: 1fr; gap: 36px; }\n.jxg-guide .rules-grid{ grid-template-columns: 1fr; }\n.jxg-guide .cards3{ grid-template-columns: 1fr; }\n.jxg-guide .cards4{ grid-template-columns: repeat(2, 1fr); }\n.jxg-guide .related-grid{ grid-template-columns: 1fr; gap: 36px; }\n.jxg-guide .sitemap-grid{ grid-template-columns: repeat(2, 1fr); }}<\/p>\n<p>@media (max-width: 640px) {.jxg-guide .container{ padding: 0 20px; }\n.jxg-guide .section{ padding: 56px 0; }\n.jxg-guide .cards4{ grid-template-columns: 1fr; }\n.jxg-guide .sitemap-grid{ grid-template-columns: 1fr; }}\n.jxg-guide .intl table.data{color:#E8C896 !important}.jxg-guide .intl table.data thead th{color:#ffffff !important}.jxg-guide .intl table.data tbody td{color:#E8C896 !important}.jxg-guide .intl table.data td:first-child{color:#D4A574 !important}.jxg-guide .jxg-cardwrap{position:relative}.jxg-guide .jxg-stretch{position:absolute;inset:0;z-index:2;font-size:0}.jxg-guide p:empty{display:none !important}.jxg-guide .jxg-cardwrap>p{margin:0 !important;padding:0 !important}\n<\/style>\n<div class=\"jxg-guide\">\n<section class=\"pillar-hero\">\n<div class=\"container\">\n<div>\n<div class=\"pillar-eyebrow\">Buyer&#8217;s Reference Guide &#183; Updated June 2026<\/div>\n<h1>Lamp Holder &amp; Bulb Cap Sizes: <em>E27 vs E26 vs B22<\/em>, explained.<\/h1>\n<p class=\"pillar-lede\"> Every bulb attaches by a <strong>cap (base)<\/strong>, and every fixture has a matching <strong>holder (socket)<\/strong>. Get the code right and the bulb fits; get it wrong and nothing seats. This guide is the full chart &#8212; screw caps (E27, E26, E14), bayonet caps (B22, B15) and pin types &#8212; plus the one that confuses everyone: <strong>is E26 the same as E27?<\/strong> <\/p>\n<div class=\"hero-actions\"> <a href=\"#chart\" class=\"cta cta-lg\">Jump to Size Chart &#8594;<\/a> <a href=\"#e27-e26\" class=\"cta cta-outline cta-lg\">E27 vs E26<\/a> <\/div>\n<\/p><\/div>\n<div class=\"jumpnav\">\n<h4>On this page<\/h4>\n<ol>\n<li><a href=\"#chart\">Bulb cap &amp; holder size chart<\/a><\/li>\n<li><a href=\"#e27-e26\">E27 vs E26 &#8212; are they the same?<\/a><\/li>\n<li><a href=\"#screw\">Screw (Edison) caps explained<\/a><\/li>\n<li><a href=\"#bayonet\">Bayonet caps (B22, B15)<\/a><\/li>\n<li><a href=\"#pin\">Pin &amp; twist caps (GU10, G9)<\/a><\/li>\n<li><a href=\"#identify\">How to identify your holder<\/a><\/li>\n<li><a href=\"#shade\">Holder vs shade fitter<\/a><\/li>\n<li><a href=\"#custom\">Shades made to fit &#183; OEM<\/a><\/li>\n<li><a href=\"#faq\">FAQ<\/a><\/li>\n<\/ol><\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 2 &#183; MASTER CHART (&#9733; data table = snippet bait) &#9553; --> <!-- &#9553; &#127919; \"bulb cap sizes\", \"lamp holder sizes\", \"light bulb base chart\"&#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section white\" id=\"chart\">\n<div class=\"container\">\n<div class=\"section-eyebrow\">The Master Chart<\/div>\n<h2>Bulb cap &amp; holder <em>size chart<\/em>.<\/h2>\n<p class=\"section-intro\">The cap code reads as a letter + a number: the letter is the type (<strong>E<\/strong> = Edison screw, <strong>B<\/strong> = bayonet, <strong>G\/GU<\/strong> = pin), and the number is the diameter or pin spacing in millimetres. Here are the codes you&#8217;ll actually meet.<\/p>\n<div class=\"tbl-wrap\">\n<table class=\"data\">\n<caption>Common lamp holder \/ bulb cap sizes worldwide.<\/caption>\n<thead>\n<tr>\n<th>Cap code<\/th>\n<th>Name<\/th>\n<th>Diameter<\/th>\n<th>Region \/ typical use<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>E27<\/td>\n<td>Edison Screw (ES)<\/td>\n<td class=\"hl\">27 mm<\/td>\n<td>Europe, UK, Asia &#8212; the world standard<\/td>\n<\/tr>\n<tr>\n<td>E26<\/td>\n<td>Medium Edison (MES)<\/td>\n<td class=\"hl\">26 mm<\/td>\n<td>North America (120V) standard<\/td>\n<\/tr>\n<tr>\n<td>E14<\/td>\n<td>Small Edison (SES)<\/td>\n<td class=\"hl\">14 mm<\/td>\n<td>Europe &#8212; candle, fridge &amp; accent bulbs<\/td>\n<\/tr>\n<tr>\n<td>E12<\/td>\n<td>Candelabra (CES)<\/td>\n<td class=\"hl\">12 mm<\/td>\n<td>North America &#8212; chandelier \/ candle<\/td>\n<\/tr>\n<tr>\n<td>E40<\/td>\n<td>Goliath Edison (GES)<\/td>\n<td class=\"hl\">40 mm<\/td>\n<td>Industrial \/ high-bay \/ street lighting<\/td>\n<\/tr>\n<tr>\n<td>E39<\/td>\n<td>Mogul<\/td>\n<td class=\"hl\">39 mm<\/td>\n<td>North America industrial \/ high-wattage<\/td>\n<\/tr>\n<tr>\n<td>B22<\/td>\n<td>Bayonet Cap (BC)<\/td>\n<td class=\"hl\">22 mm<\/td>\n<td>UK &amp; Commonwealth &#8212; push &amp; twist<\/td>\n<\/tr>\n<tr>\n<td>B15<\/td>\n<td>Small Bayonet (SBC)<\/td>\n<td class=\"hl\">15 mm<\/td>\n<td>UK &#8212; candle &amp; small fittings<\/td>\n<\/tr>\n<tr>\n<td>GU10<\/td>\n<td>Twist-lock spot<\/td>\n<td class=\"hl\">10 mm pin gap<\/td>\n<td>Mains spotlights \/ downlights<\/td>\n<\/tr>\n<tr>\n<td>G9 \/ G4<\/td>\n<td>Bi-pin<\/td>\n<td class=\"hl\">9 \/ 4 mm pin gap<\/td>\n<td>Capsule bulbs, decorative fittings<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p class=\"section-intro\" style=\"margin-top:28px;\">Most table, floor and pendant lamps use <strong>E27<\/strong> (or <strong>E26<\/strong> in North America); chandeliers and wall lights use <strong>E14 \/ E12<\/strong> or <strong>B15<\/strong>; UK fittings often use <strong>B22<\/strong>. Need the shade, not the bulb? See the <a href=\"\/lamp-shade-sizes\/\">lamp shade size &amp; fitter guide<\/a>.<\/p>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 3 &#183; E27 vs E26 (&#9733; the headline confusion = ml-to-oz) &#9553; --> <!-- &#9553; &#127919; \"e27 vs e26\", \"are e26 and e27 interchangeable\", \"difference\" &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section\" id=\"e27-e26\">\n<div class=\"container\">\n<div class=\"section-eyebrow\">The Big Confusion<\/div>\n<h2>E27 vs E26 &#8212; are they the <em>same<\/em>?<\/h2>\n<div class=\"answer-box\"> <span class=\"lbl\">Short answer<\/span> <strong>Almost. E27 (27 mm) is the Europe\/Asia standard; E26 (26 mm) is North America&#8217;s.<\/strong> The 1 mm difference means they usually thread together &#8212; but match the bulb&#8217;s <strong>voltage<\/strong> to your supply (120V in North America, 230V in Europe\/UK\/Asia). <\/div>\n<div class=\"split-grid\">\n<div class=\"svg-wrap\"> <svg viewBox=\"0 0 320 230\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" role=\"img\" aria-label=\"Comparison of E27 and E26 Edison screw caps: 27mm versus 26mm diameter\"> <!-- E27 --> <text x=\"80\" y=\"28\" text-anchor=\"middle\" font-family=\"Fraunces, serif\" font-size=\"16\" fill=\"#8C6435\">E27<\/text> <path d=\"M58 44 h44 v54 q0 18 -22 24 q-22 -6 -22 -24 z\" fill=\"#ECdcc0\" stroke=\"#B8864A\" stroke-width=\"2\"\/> <path d=\"M58 52 h44 M58 62 h44 M58 72 h44 M58 82 h44\" stroke=\"#B8864A\" stroke-width=\"1.4\" fill=\"none\"\/> <line x1=\"58\" y1=\"118\" x2=\"102\" y2=\"118\" stroke=\"#8C6435\" stroke-width=\"1.5\"\/> <text x=\"80\" y=\"138\" text-anchor=\"middle\" font-family=\"DM Sans\" font-size=\"13\" fill=\"#5A4214\" font-weight=\"600\">27 mm<\/text> <text x=\"80\" y=\"160\" text-anchor=\"middle\" font-family=\"DM Sans\" font-size=\"11\" fill=\"#6B6560\">EU &#183; UK &#183; Asia &#183; 230V<\/text> <!-- E26 --> <text x=\"232\" y=\"28\" text-anchor=\"middle\" font-family=\"Fraunces, serif\" font-size=\"16\" fill=\"#8C6435\">E26<\/text> <path d=\"M212 44 h40 v52 q0 17 -20 23 q-20 -6 -20 -23 z\" fill=\"#F3E8D4\" stroke=\"#B8864A\" stroke-width=\"2\"\/> <path d=\"M212 52 h40 M212 62 h40 M212 72 h40 M212 82 h40\" stroke=\"#B8864A\" stroke-width=\"1.4\" fill=\"none\"\/> <line x1=\"212\" y1=\"116\" x2=\"252\" y2=\"116\" stroke=\"#8C6435\" stroke-width=\"1.5\"\/> <text x=\"232\" y=\"138\" text-anchor=\"middle\" font-family=\"DM Sans\" font-size=\"13\" fill=\"#5A4214\" font-weight=\"600\">26 mm<\/text> <text x=\"232\" y=\"160\" text-anchor=\"middle\" font-family=\"DM Sans\" font-size=\"11\" fill=\"#6B6560\">North America &#183; 120V<\/text> <!-- diff note --> <text x=\"160\" y=\"205\" text-anchor=\"middle\" font-family=\"DM Sans\" font-size=\"12\" fill=\"#1A1614\" font-weight=\"600\">Just 1 mm apart &#8212; they usually interchange<\/text> <\/svg> <\/div>\n<div>\n<p><strong>Mechanically<\/strong>, the 1&nbsp;mm gap is small enough that an E26 bulb will usually screw into an E27 holder and vice-versa. For a one-off bulb swap, they&#8217;re effectively cross-compatible.<\/p>\n<p><strong>Electrically is what matters.<\/strong> E27 fittings are wired for 220&#8211;240V (Europe, UK, most of Asia); E26 fittings for 110&#8211;120V (North America). Putting a 120V bulb on 230V mains will blow it instantly &#8212; and the reverse runs dim. Always buy the bulb rated for your region&#8217;s voltage.<\/p>\n<div class=\"callout\"> <strong>For manufacturers &amp; exporters:<\/strong> if you sell the same glass fixture into both the EU and the US, you typically swap only the holder (E27 &#8596; E26) and the bulb rating &#8212; the <a href=\"\/glass-lamp-shades\/\">glass shade itself<\/a> is identical. We supply shades drilled and necked for either. <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 4 &#183; SCREW CAPS (visual glossary cards) &#9553; --> <!-- &#9553; &#127919; \"e27 lamp holder\" (1.3K\/KD5), \"e14\", \"edison screw sizes\" &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section white\" id=\"screw\">\n<div class=\"container\">\n<div class=\"section-eyebrow\">Screw (Edison) Caps<\/div>\n<h2>The <em>Edison screw<\/em> family.<\/h2>\n<p class=\"section-intro\">Screw caps thread in. Named after Edison, coded &#8220;E&#8221; + diameter in mm. These five cover almost every screw-fit bulb you&#8217;ll meet.<\/p>\n<div class=\"cards4\">\n<div class=\"cap-card\">\n<div class=\"cap-fig\"> <svg width=\"70\" height=\"84\" viewBox=\"0 0 70 84\" aria-hidden=\"true\"><path d=\"M22 14 h26 v40 q0 14 -13 18 q-13 -4 -13 -18 z\" fill=\"#ECdcc0\" stroke=\"#B8864A\" stroke-width=\"2\"\/><path d=\"M22 22 h26 M22 31 h26 M22 40 h26\" stroke=\"#B8864A\" stroke-width=\"1.3\"\/><\/svg> <\/div>\n<div class=\"cap-info\"><span class=\"code\">E27<\/span><\/p>\n<h3>Edison Screw (ES)<\/h3>\n<p>27 mm. The global standard for table, floor &amp; pendant lamps.<\/p>\n<\/div><\/div>\n<div class=\"cap-card\">\n<div class=\"cap-fig\"> <svg width=\"70\" height=\"84\" viewBox=\"0 0 70 84\" aria-hidden=\"true\"><path d=\"M23 14 h24 v38 q0 13 -12 17 q-12 -4 -12 -17 z\" fill=\"#F3E8D4\" stroke=\"#B8864A\" stroke-width=\"2\"\/><path d=\"M23 22 h24 M23 31 h24 M23 40 h24\" stroke=\"#B8864A\" stroke-width=\"1.3\"\/><\/svg> <\/div>\n<div class=\"cap-info\"><span class=\"code\">E26<\/span><\/p>\n<h3>Medium Edison<\/h3>\n<p>26 mm. The North American 120V equivalent of E27.<\/p>\n<\/div><\/div>\n<div class=\"cap-card\">\n<div class=\"cap-fig\"> <svg width=\"70\" height=\"84\" viewBox=\"0 0 70 84\" aria-hidden=\"true\"><path d=\"M28 18 h14 v34 q0 10 -7 14 q-7 -4 -7 -14 z\" fill=\"#ECdcc0\" stroke=\"#B8864A\" stroke-width=\"2\"\/><path d=\"M28 26 h14 M28 34 h14 M28 42 h14\" stroke=\"#B8864A\" stroke-width=\"1.2\"\/><\/svg> <\/div>\n<div class=\"cap-info\"><span class=\"code\">E14<\/span><\/p>\n<h3>Small Edison (SES)<\/h3>\n<p>14 mm. Candle, accent &amp; appliance bulbs in Europe.<\/p>\n<\/div><\/div>\n<div class=\"cap-card\">\n<div class=\"cap-fig\"> <svg width=\"70\" height=\"84\" viewBox=\"0 0 70 84\" aria-hidden=\"true\"><path d=\"M29 18 h12 v32 q0 9 -6 13 q-6 -4 -6 -13 z\" fill=\"#F3E8D4\" stroke=\"#B8864A\" stroke-width=\"2\"\/><path d=\"M29 26 h12 M29 34 h12 M29 42 h12\" stroke=\"#B8864A\" stroke-width=\"1.2\"\/><\/svg> <\/div>\n<div class=\"cap-info\"><span class=\"code\">E12<\/span><\/p>\n<h3>Candelabra (CES)<\/h3>\n<p>12 mm. The US chandelier \/ candle base.<\/p>\n<\/div><\/div>\n<div class=\"cap-card\">\n<div class=\"cap-fig\"> <svg width=\"70\" height=\"84\" viewBox=\"0 0 70 84\" aria-hidden=\"true\"><path d=\"M17 12 h36 v44 q0 16 -18 20 q-18 -4 -18 -20 z\" fill=\"#E6D2AC\" stroke=\"#B8864A\" stroke-width=\"2\"\/><path d=\"M17 22 h36 M17 33 h36 M17 44 h36\" stroke=\"#B8864A\" stroke-width=\"1.5\"\/><\/svg> <\/div>\n<div class=\"cap-info\"><span class=\"code\">E40<\/span><\/p>\n<h3>Goliath (GES)<\/h3>\n<p>40 mm. Industrial high-bay, street &amp; flood lighting.<\/p>\n<\/div><\/div>\n<div class=\"cap-card\">\n<div class=\"cap-fig\"> <svg width=\"70\" height=\"84\" viewBox=\"0 0 70 84\" aria-hidden=\"true\"><path d=\"M19 12 h32 v42 q0 15 -16 19 q-16 -4 -16 -19 z\" fill=\"#E6D2AC\" stroke=\"#B8864A\" stroke-width=\"2\"\/><path d=\"M19 22 h32 M19 33 h32 M19 44 h32\" stroke=\"#B8864A\" stroke-width=\"1.5\"\/><\/svg> <\/div>\n<div class=\"cap-info\"><span class=\"code\">E39<\/span><\/p>\n<h3>Mogul<\/h3>\n<p>39 mm. North American high-wattage industrial base.<\/p>\n<\/div><\/div>\n<div class=\"cap-card jxg-cardwrap\"><a href=\"\/product-category\/explosion-proof-glass-lamp-shade\/\" class=\"jxg-stretch\" aria-label=\"View\">&#8203;<\/a> <\/p>\n<div class=\"cap-fig\"> <svg width=\"70\" height=\"84\" viewBox=\"0 0 70 84\" aria-hidden=\"true\"><ellipse cx=\"35\" cy=\"30\" rx=\"22\" ry=\"20\" fill=\"rgba(212,165,116,0.22)\" stroke=\"#B8864A\" stroke-width=\"2\"\/><path d=\"M28 50 h14 v10 q0 6 -7 8 q-7 -2 -7 -8 z\" fill=\"#ECdcc0\" stroke=\"#B8864A\" stroke-width=\"1.6\"\/><\/svg> <\/div>\n<div class=\"cap-info\"><span class=\"code\">E40 + glass<\/span><\/p>\n<h3>Industrial Shades &#8594;<\/h3>\n<p>Heavy-duty glass shades for E40\/E39 high-bay luminaires.<\/p>\n<\/div><\/div>\n<div class=\"cap-card jxg-cardwrap\"><a href=\"\/glass-lamp-shades\/\" class=\"jxg-stretch\" aria-label=\"View\">&#8203;<\/a> <\/p>\n<div class=\"cap-fig\"> <svg width=\"70\" height=\"84\" viewBox=\"0 0 70 84\" aria-hidden=\"true\"><ellipse cx=\"35\" cy=\"26\" rx=\"14\" ry=\"5\" fill=\"#FBF6EC\" stroke=\"#B8864A\" stroke-width=\"1.5\"\/><path d=\"M21 26 Q18 58 35 72 Q52 58 49 26\" fill=\"rgba(212,165,116,0.18)\" stroke=\"#B8864A\" stroke-width=\"1.6\"\/><\/svg> <\/div>\n<div class=\"cap-info\"><span class=\"code\">All E-caps<\/span><\/p>\n<h3>Browse Glass Shades &#8594;<\/h3>\n<p>Pendant &amp; fixture glass to fit any Edison-screw holder.<\/p>\n<\/div><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 5 &#183; BAYONET CAPS &#127919; \"b22 bulb\", \"bayonet cap sizes\" &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section glass\" id=\"bayonet\">\n<div class=\"container\">\n<div class=\"section-eyebrow\">Bayonet Caps<\/div>\n<h2>Bayonet caps: <em>push &amp; twist<\/em>.<\/h2>\n<p class=\"section-intro\">Common in the UK and former Commonwealth, bayonet caps don&#8217;t thread &#8212; two pins lock into the holder with a quarter turn. Coded &#8220;B&#8221; + diameter.<\/p>\n<div class=\"tbl-wrap\">\n<table class=\"data\">\n<thead>\n<tr>\n<th>Cap code<\/th>\n<th>Name<\/th>\n<th>Diameter<\/th>\n<th>Typical use<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>B22<\/td>\n<td>Bayonet Cap (BC)<\/td>\n<td class=\"hl\">22 mm<\/td>\n<td>UK standard for table, floor &amp; ceiling fittings<\/td>\n<\/tr>\n<tr>\n<td>B15<\/td>\n<td>Small Bayonet (SBC)<\/td>\n<td class=\"hl\">15 mm<\/td>\n<td>UK candle bulbs, small &amp; appliance fittings<\/td>\n<\/tr>\n<tr>\n<td>BA15d \/ BA9s<\/td>\n<td>Miniature bayonet<\/td>\n<td class=\"hl\">15 \/ 9 mm<\/td>\n<td>Automotive, indicator &amp; signal lamps<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<div class=\"callout\"> <strong>Exporting to the UK?<\/strong> Many British fixtures still use B22, while the EU mainland uses E27 and North America E26. A glass shade with its own fitter neck works across all of them &#8212; only the holder changes. We supply for every market; see <a href=\"#shade\">holder vs shade fitter<\/a> below. <\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 6 &#183; PIN \/ TWIST &#127919; \"gu10\", \"g9 bulb base\" &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section white\" id=\"pin\">\n<div class=\"container\">\n<div class=\"section-eyebrow\">Pin &amp; Twist Caps<\/div>\n<h2>Pin &amp; twist-lock <em>bases<\/em>.<\/h2>\n<p class=\"section-intro\">Spotlights and capsule bulbs use pins instead of a cap. Coded &#8220;G&#8221; (the number is the gap between pins in mm); &#8220;U&#8221; means twist-lock.<\/p>\n<div class=\"rules-grid\">\n<div class=\"rule-card\"><span class=\"ico\">GU10<\/span><\/p>\n<h4>Twist-lock spot<\/h4>\n<p>10 mm pin spacing, mains voltage. Push and twist &#8212; the standard for downlights and track spots.<\/p>\n<\/div>\n<div class=\"rule-card\"><span class=\"ico\">G9<\/span><\/p>\n<h4>Bi-pin capsule<\/h4>\n<p>9 mm loop pins, mains voltage. Small decorative fittings, wall lights and some pendants.<\/p>\n<\/div>\n<div class=\"rule-card\"><span class=\"ico\">G4 \/ GU5.3<\/span><\/p>\n<h4>Low-voltage capsule<\/h4>\n<p>4 \/ 5.3 mm pins, 12V (needs a transformer\/driver). Under-cabinet and accent lighting.<\/p>\n<\/div><\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 7 &#183; IDENTIFY (decision rules, AI-citable) &#9553; --> <!-- &#9553; &#127919; \"how to know what bulb holder I have\" &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section glass\" id=\"identify\">\n<div class=\"container\">\n<div class=\"section-eyebrow\">Quick Diagnosis<\/div>\n<h2>How to <em>identify<\/em> your holder in 10 seconds.<\/h2>\n<p class=\"section-intro\">Look at the old bulb &#8212; its base tells you everything.<\/p>\n<div class=\"rules-grid\">\n<div class=\"rule-card\"> <span class=\"ico\">&#8635;<\/span> <\/p>\n<h4>It screws in<\/h4>\n<p>That&#8217;s an <strong>Edison<\/strong> cap. Measure the base diameter: ~27 mm = <strong>E27<\/strong>, ~26 mm = <strong>E26<\/strong>, ~14 mm = <strong>E14<\/strong>, ~12 mm = <strong>E12<\/strong>.<\/p>\n<\/p><\/div>\n<div class=\"rule-card\"> <span class=\"ico\">&#8690;<\/span> <\/p>\n<h4>It pushes &amp; twists<\/h4>\n<p>Two pins on the side = <strong>bayonet<\/strong>. ~22 mm across = <strong>B22<\/strong>, ~15 mm = <strong>B15<\/strong>.<\/p>\n<\/p><\/div>\n<div class=\"rule-card\"> <span class=\"ico\">&#8916;<\/span> <\/p>\n<h4>It has thin pins<\/h4>\n<p>Two prongs sticking out = <strong>pin type<\/strong>. Wide twist = <strong>GU10<\/strong>; thin loops ~9 mm = <strong>G9<\/strong>; tiny ~4 mm = <strong>G4<\/strong>.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"callout\"><strong>Shortcut:<\/strong> the cap code is almost always printed on the metal base or the glass of the old bulb (e.g. &#8220;E27 230V&#8221;). When in doubt, photograph the base next to a ruler.<\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 8 &#183; HOLDER vs SHADE FITTER (bridge to shade content) &#9553; --> <!-- &#9553; &#127919; ties this magnet back into the shade cluster + sizes page &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section white\" id=\"shade\">\n<div class=\"container\">\n<div class=\"section-eyebrow\">Don&#8217;t Confuse the Two<\/div>\n<h2>Holder size <em>vs<\/em> shade fitter.<\/h2>\n<div class=\"answer-box\"> <span class=\"lbl\">The key distinction<\/span> <strong>The holder (E27, B22&#8230;) holds the bulb. The fitter (spider\/harp, ring, or glass fitter neck) holds the shade.<\/strong> They&#8217;re separate &#8212; but on many European fittings a ring shade sits on the holder, so they interact. <\/div>\n<p class=\"section-intro\">If you&#8217;re sourcing a glass shade, you need its <strong>fitter<\/strong> spec, not just the bulb holder. On a glass pendant the shade has its own fitter neck (1-5\/8&#8243;, 2-1\/4&#8243;, 3-1\/4&#8243;, 4&#8243;) that&#8217;s independent of whether the bulb is E27 or B22. On a European ring-fit shade, the shade ring sits over the E27\/B22 holder, so the holder size does matter.<\/p>\n<div class=\"cards3\">\n<div class=\"shade-card jxg-cardwrap\"><a href=\"\/lamp-shade-sizes\/\" class=\"jxg-stretch\" aria-label=\"View\">&#8203;<\/a> <\/p>\n<div class=\"shade-fig\"><svg width=\"120\" height=\"96\" viewBox=\"0 0 120 96\" aria-hidden=\"true\"><polygon points=\"48,28 72,28 84,72 36,72\" fill=\"#F0E4CC\" stroke=\"#B8864A\" stroke-width=\"1.5\"\/><ellipse cx=\"60\" cy=\"28\" rx=\"12\" ry=\"3.5\" fill=\"#FBF6EC\" stroke=\"#B8864A\" stroke-width=\"1.3\"\/><ellipse cx=\"60\" cy=\"72\" rx=\"24\" ry=\"5\" fill=\"#E6D6B4\" stroke=\"#B8864A\" stroke-width=\"1.3\"\/><\/svg><\/div>\n<div class=\"shade-info\"><span class=\"tag\">Guide<\/span><\/p>\n<h3>Lamp Shade Sizes &amp; Fitters<\/h3>\n<p>How to measure a shade and the four fitter systems &#8212; spider, uno, clip-on and glass neck.<\/p>\n<p><span class=\"lnk\">Open the size guide &#8594;<\/span><\/div>\n<\/p><\/div>\n<div class=\"shade-card jxg-cardwrap\"><a href=\"\/lamp-shade-shapes\/\" class=\"jxg-stretch\" aria-label=\"View\">&#8203;<\/a> <\/p>\n<div class=\"shade-fig\"><svg width=\"120\" height=\"96\" viewBox=\"0 0 120 96\" aria-hidden=\"true\"><path d=\"M40 30 Q60 22 80 30 Q92 60 60 84 Q28 60 40 30\" fill=\"#F0E4CC\" stroke=\"#B8864A\" stroke-width=\"1.5\"\/><\/svg><\/div>\n<div class=\"shade-info\"><span class=\"tag\">Guide<\/span><\/p>\n<h3>Lamp Shade Shapes<\/h3>\n<p>Globe, dome, drum, empire, bell and more &#8212; the visual glossary of shade silhouettes.<\/p>\n<p><span class=\"lnk\">See shade shapes &#8594;<\/span><\/div>\n<\/p><\/div>\n<div class=\"shade-card jxg-cardwrap\"><a href=\"\/services\/\" class=\"jxg-stretch\" aria-label=\"View\">&#8203;<\/a> <\/p>\n<div class=\"shade-fig\"><svg width=\"120\" height=\"96\" viewBox=\"0 0 120 96\" aria-hidden=\"true\"><ellipse cx=\"60\" cy=\"22\" rx=\"14\" ry=\"5\" fill=\"#FBF6EC\" stroke=\"#B8864A\" stroke-width=\"1.5\"\/><path d=\"M46 22 L34 80 Q60 90 86 80 L74 22\" fill=\"#EFE0C4\" stroke=\"#B8864A\" stroke-width=\"1.5\"\/><\/svg><\/div>\n<div class=\"shade-info\"><span class=\"tag\">Service<\/span><\/p>\n<h3>Shades Made to Fit<\/h3>\n<p>Tell us your holder and fitter &#8212; we make the glass to match, in volume.<\/p>\n<p><span class=\"lnk\">Start a custom shade &#8594;<\/span><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 9 &#183; CUSTOM \/ B2B BRIDGE &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section glass\" id=\"custom\">\n<div class=\"container\">\n<div class=\"section-eyebrow\">For Brands, Designers &amp; Fixture Makers<\/div>\n<h2>Glass shades made to fit <em>any<\/em> holder.<\/h2>\n<p class=\"section-intro\">If you build or source lighting, the holder is your spec &#8212; the glass should fit it, not the other way round. As a <a href=\"\/services\/\">glass lampshade manufacturer<\/a> we neck and drill shades for E27, E26, B22, E14 and bespoke holders, and ship the same fixture spec&#8217;d differently for each market.<\/p>\n<div class=\"tbl-wrap\">\n<table class=\"data\">\n<caption>Custom &amp; wholesale glass shade capability.<\/caption>\n<thead>\n<tr>\n<th>Spec<\/th>\n<th>Capability<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Holder compatibility<\/td>\n<td>E27 &#183; E26 &#183; E14 &#183; E12 &#183; B22 &#183; B15 &#183; E40 &#183; GU10 fittings<\/td>\n<\/tr>\n<tr>\n<td>Fitter necks<\/td>\n<td>1-5\/8&#8243;, 2-1\/4&#8243;, 3-1\/4&#8243;, 4&#8243; &#183; any custom neck to drawing<\/td>\n<\/tr>\n<tr>\n<td>Glass &amp; finish<\/td>\n<td>Clear &#183; opal\/white &#183; frosted &#183; amber &#183; borosilicate &#183; custom tint<\/td>\n<\/tr>\n<tr>\n<td>MOQ<\/td>\n<td>500 pcs per SKU (250-pc trial negotiable)<\/td>\n<\/tr>\n<tr>\n<td>Certifications<\/td>\n<td>CE &#183; RoHS &#183; REACH &#183; SMETA &#183; ISO 9001:2015<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<div style=\"margin-top:32px;\"><a href=\"\/contact-us\/\" class=\"cta cta-lg\">Send your holder &amp; shade spec &#8594;<\/a><\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 10 &#183; RELATED (&#9733; internal link spine) &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section white\">\n<div class=\"container\">\n<div class=\"section-eyebrow\">Keep Exploring<\/div>\n<h2>Related <em>reference<\/em> guides.<\/h2>\n<div class=\"related-grid\">\n<div class=\"related-col\">\n<h3>Sizing &amp; selection<\/h3>\n<ul class=\"related-list\">\n<li><a href=\"\/lamp-shade-sizes\/\"><span class=\"title\">Lamp Shade Sizes: Measure &amp; Choose<\/span><span class=\"meta\">Guide<\/span><\/a><\/li>\n<li><a href=\"\/lamp-shade-shapes\/\"><span class=\"title\">Lamp Shade Shapes: Visual Guide<\/span><span class=\"meta\">Guide<\/span><\/a><\/li>\n<li><a href=\"\/glass-lamp-shades\/\"><span class=\"title\">Glass Lamp Shades &#8212; Full Range<\/span><span class=\"meta\">Category<\/span><\/a><\/li>\n<li><a href=\"\/product-category\/borosilicate-glass-lamp-shade\/\"><span class=\"title\">Borosilicate (heat-resistant) Shades<\/span><span class=\"meta\">Material<\/span><\/a><\/li>\n<\/ul><\/div>\n<div class=\"related-col\">\n<h3>Replacement &amp; custom<\/h3>\n<ul class=\"related-list\">\n<li><a href=\"\/glass-lamp-shades\/\"><span class=\"title\">Replacement Glass Lamp Shades<\/span><span class=\"meta\">Service<\/span><\/a><\/li>\n<li><a href=\"\/services\/\"><span class=\"title\">Custom Glass Lamp Shades (OEM \/ ODM)<\/span><span class=\"meta\">Service<\/span><\/a><\/li>\n<li><a href=\"\/product-category\/opal-glass-lamp-shade\/\"><span class=\"title\">Opal Glass Lamp Shades<\/span><span class=\"meta\">Collection<\/span><\/a><\/li>\n<li><a href=\"\/product-category\/explosion-proof-glass-lamp-shade\/\"><span class=\"title\">Explosion-Proof Glass Shades<\/span><span class=\"meta\">Collection<\/span><\/a><\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 11 &#183; FAQ (&#9733; FAQPage schema = the differentiator) &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"section glass\" id=\"faq\">\n<div class=\"container-narrow\">\n<div class=\"section-eyebrow\">Common Questions<\/div>\n<h2>Lamp holder &amp; bulb cap <em>FAQs<\/em>.<\/h2>\n<div class=\"faq-list\">\n<details open>\n<summary>What is the difference between E27 and E26 bulbs?<\/summary>\n<p>Both are medium Edison screw caps and look almost identical. <strong>E27 is 27&nbsp;mm<\/strong> (Europe, UK, Asia &#8212; 230V); <strong>E26 is 26&nbsp;mm<\/strong> (North America &#8212; 120V). The 1&nbsp;mm difference usually lets them thread together, but match the bulb&#8217;s voltage to your supply. <a href=\"#e27-e26\">See the comparison &#8594;<\/a><\/p>\n<\/details>\n<details>\n<summary>Are E26 and E27 interchangeable?<\/summary>\n<p>Mechanically, mostly yes &#8212; the 1&nbsp;mm gap usually lets an E26 bulb thread into an E27 holder and vice-versa. <strong>Electrically you must match the voltage:<\/strong> 120V bulbs on 120V supply, 220&#8211;240V bulbs on 230V supply. For permanent, certified fixtures, use the holder and bulb rated for your region.<\/p>\n<\/details>\n<details>\n<summary>What does E27 mean?<\/summary>\n<p>&#8220;E&#8221; is for Edison (a screw-type cap) and &#8220;27&#8221; is the thread diameter in millimetres. So <strong>E27 = a 27&nbsp;mm Edison screw cap<\/strong> &#8212; the most common bulb base in the world outside North America.<\/p>\n<\/details>\n<details>\n<summary>What is a B22 bayonet cap?<\/summary>\n<p><strong>B22 (BC, bayonet cap)<\/strong> is a 22&nbsp;mm push-and-twist base used mainly in the UK and former Commonwealth. Two pins lock into the holder with a quarter turn instead of threading. The small version is B15 (SBC).<\/p>\n<\/details>\n<details>\n<summary>How do I know what bulb holder I have?<\/summary>\n<p>Check how the old bulb attaches. <strong>Screws in<\/strong> = Edison (&#8776;27&nbsp;mm = E27, 26&nbsp;mm = E26, 14&nbsp;mm = E14). <strong>Push &amp; twist with two pins<\/strong> = bayonet (&#8776;22&nbsp;mm = B22, 15&nbsp;mm = B15). <strong>Thin pins<\/strong> = GU\/G type. The code is usually printed on the old bulb too. <a href=\"#identify\">See the diagnosis guide &#8594;<\/a><\/p>\n<\/details>\n<details>\n<summary>Does the bulb holder affect which lamp shade fits?<\/summary>\n<p>Indirectly. The holder determines the bulb; a separate <strong>fitter<\/strong> (spider\/harp, ring, or glass fitter neck) holds the shade. On many European fittings a ring shade sits on the holder, so the holder size matters; on glass pendants the shade has its own fitter neck independent of the bulb. Confirm both &#8212; see the <a href=\"\/lamp-shade-sizes\/\">shade size &amp; fitter guide<\/a>.<\/p>\n<\/details><\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 12 &#183; BOTTOM CTA &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/p>\n<section class=\"bottom-cta\">\n<div class=\"container\">\n<div class=\"section-eyebrow\" style=\"color:var(--accent-light);justify-content:center;display:inline-flex;\">Know your holder?<\/div>\n<h2>Tell us the holder &#8212; we&#8217;ll make the <em>glass to fit<\/em>.<\/h2>\n<p>E27, E26, B22 or a bespoke base, in clear, opal or borosilicate: send your holder and fitter spec and we&#8217;ll quote in 24 hours. Glass lampshade manufacturer since 1999, shipping to 150+ countries.<\/p>\n<div class=\"bottom-cta-actions\"> <a href=\"\/contact-us\/\" class=\"cta cta-light cta-lg\">Request a Quote &#8594;<\/a> <a href=\"\/glass-lamp-shades\/\" class=\"cta cta-outline cta-lg\" style=\"color:white;border-color:white;\">Browse Glass Shades<\/a> <\/div>\n<\/p><\/div>\n<\/section>\n<p> <!-- &#9556;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9559; --> <!-- &#9553; SECTION 13 &#183; SITEMAP (site-wide cluster network) &#9553; --> <!-- &#9562;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9552;&#9565; --> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Buyer&#8217;s Reference Guide &#183; Updated June 2026 Lamp Holder &amp; Bulb Cap Sizes: E27 vs E26 vs B22, explained. Every bulb attaches by a cap (base), and every fixture has a matching holder (socket). Get the code right and the bulb fits; get it wrong and nothing seats. This guide is the full chart &#8212; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-7741","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jxlampshade.com\/es\/wp-json\/wp\/v2\/pages\/7741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jxlampshade.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jxlampshade.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jxlampshade.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jxlampshade.com\/es\/wp-json\/wp\/v2\/comments?post=7741"}],"version-history":[{"count":8,"href":"https:\/\/jxlampshade.com\/es\/wp-json\/wp\/v2\/pages\/7741\/revisions"}],"predecessor-version":[{"id":7777,"href":"https:\/\/jxlampshade.com\/es\/wp-json\/wp\/v2\/pages\/7741\/revisions\/7777"}],"wp:attachment":[{"href":"https:\/\/jxlampshade.com\/es\/wp-json\/wp\/v2\/media?parent=7741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}