... for light protection; both matt and clear glass available.9. Closed corrosion-proof silicone ring for dustproof and waterproof; ... Anti-corrosion dealing etc.;Driver detailed & long time test;LED chip color temperautre,CRI,lumen efficiency test;2). Assembling: following schedule ... 4). Warehouse and Shipping:files for item No.,quantity,color temperature,voltage,label,packing etc.All with signature of ...