... temperaturewarm white:3000-3500K white:5500-6500KColor rendering indexRa≥80Available emitting colorwhite, warm white, blue, green, red, yellowShell materialPCShell colorbuleWork tempreture ... -20-40°CLifespan50,000hours Feature of LED Ceiling light: Available emitting color: white, warm White, blue, green, red, yellowNo UV and ...