Technical Specifications
| Parameter | Specification |
| Size | Diameter 100mm,height200 mm,hole 23mm |
| Material | High borosilicate glass |
| Shape | Cone |
| Color | Clear, colored glass as customized |
| Production Method | Hand Blown |
| MOQ | 200 pcs |
| Packing | by standard export safe carton or polyfoam box or pallet packing |
Craftsmanship & Material Excellence
Industry-standard G9 interfaces use metal sockets crimped or glued to glass shades—failure-prone and aesthetically inconsistent. Our hand blown glass lampshade engineering achieves monolithic glass G9 threads through:
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Material: Borosilicate Glass 3.3 with modified surface hardness
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Machining: CNC diamond turning at 15,000 RPM with flood cooling
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Validation: 100% torque testing (1.5-3.0N·m operational range)
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Finish: Fire polishing eliminating stress concentrators
This innovation—patent pending—allows seamless antique glass lamp shade aesthetics with modern G9 LED performance, solving the retrofit market’s central technical conflict.
FAQ
Q1: What is the MOQ for custom borosilicate glass double wall lampshade? A: Standard MOQ is 100pcs per shape for clear glass, 300pcs for colored or coated finishes. For trial orders, we offer 50pcs prototyping batch at 1.5× unit price.
Q2: How to ensure the hand blown glass lampshade quality consistency? A: We maintain a master sample for each SKU. Every production batch is compared against the master using digital photogrammetry. Deviation >3% triggers automatic rework.
Q3: Can you manufacture lamp shades with integrated G9 ceramic socket? A: Yes, we provide G9 ceramic base integration service. The assembly is done in our ESD-protected workshop with dielectric strength testing (2kV/1min).
Q4: What is the lead time for double wall glass shade sampling? A: Simple shapes: 7 working days. Complex custom shapes: 12-15 working days. Express shipping (DHL/FedEx) takes 3-5 days globally.
Q5: Do you offer exclusive mold protection for custom designs? A: Absolutely. We sign NDA before receiving drawings, and exclusive molds are locked for 24 months minimum. Mold ownership can transfer to client after 10,000pcs cumulative order.
Comprehensive Mouth Blown Glass Shade Customization Options
Shape
Globe, square, dome, mushroom, cylinder, flower or customized
Size
Diameter ranging from Φ50mm to Φ500mm, with height of 30-400mm or customized
Color
Transparent, milky white, amber, smoky gray, ruby red, cobalt blue, Pantone customization
Neck Finish
Straight mouth, thread mouth, cutting mouth, fitter neck, fire polishing rim
Surface
Glossy, sandblasting, acid etching, printing decal logo, hand painting or customized
Packaging
Egg crated carton boxes; inner brown boxes; colored boxes; inside foam packing with carton boxes or customized color boxes
