... -glare optical design 3.5 year LED warranty 9W LED Module,50mm cut hole ,COB led downlight Features and Benefits:1 ... life: 35,000 hoursBeam angle: 16°, 28°,40°Operating temperature: -20°C~40°CStorage temperature: -30°C~60°CColor rendering index ... products2. If Failure or damage due to incorrect operation, wire connection, or anything other do not follow our instruction, Rayconn will ...