... WhiteCool White 2600-3700K4000-4800K5000-6500K6500-7500KFeatures:No UV or IR(infra-red) radiation, no mercury or lead, eco-friendlyLow energy consumption ... running, 50,000 hours lifespanHigh uniformity of light distribution, no shadow, no glareExcellent heat dissipation due to unique structural designWidely applied in ... : 10%-90%Storage environment: indoor, ventilation, air should be no corrosive gases