Good glass, made by Renchen.
Material & Craft
Q1: Is your glass lead-free? Can you provide material test reports?
A: All our glass lampshades adopt lead-free soda-lime glass. We can provide official material test reports upon request to meet EU and US market requirements.
Q2: What glass material do you supply? Soda-lime glass or borosilicate glass?
A: Standard items are high-quality soda-lime glass. Heat-resistant borosilicate glass is available for special high-temperature lighting projects with customized MOQ.
Q3: Are your glass shades hand-blown or machine pressed?
A: We support both techniques. Hand-blown shades for high-end bespoke lighting projects; machine-pressed shades for mass orders with stable dimension consistency.
Q4: What wall thickness can you produce for glass lampshades?
A: Available thickness ranges from 3mm to 20mm. We will recommend suitable thickness according to your lighting structure and anti-breakage demand.
Q5: Can the glass resist thermal shock? Will it crack under long-term LED heating?
A: Our standard glass can adapt to normal LED working temperature. For high-heat lighting, we suggest borosilicate glass to avoid thermal cracking.
Q6: What surface finishes are available for glass shades?
A: We offer clear, frosted, smoked, amber, gradient tint, embossed, carved and acid-etched finishes. Custom surface treatment is acceptable.
Q7: Can you adjust light transmittance for residential and hotel lighting?
A: Yes. We can adjust light transmittance via frosting, tinting or coating to match your lighting design effect.
Q8: What is your dimension tolerance standard?
A: Standard tolerance: ±1mm for machine-pressed glass; ±1.5mm for handmade blown glass. We can adjust tolerance based on customers’ requirements.
Q9: Can we customize shape, size and color based on our drawings?
A: Absolutely. We accept OEM & ODM customization. You can provide drawings, samples or design drafts for development.
Q10: Can you match Pantone or RAL color number for glass tint?
A: We can color-match according to Pantone/RAL reference. Minor color difference exists for glass products, and we will confirm color samples before mass production.
Dongguan Renchen Glass Products Co.,Ltd.
Address：No. 11, Luyuli Industrial Second Road, Luwu Village, Changping Town, Dongguan City, Guangdong Province
Tel：+86 0769-81817166 Business
Mobile：+86 13712957896 / Yuan Caixian
+86 13711891996 / Wang Zicheng
Email：gdrcglass@vip.163.com
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