... lamp.6. Different Colours AvailableCool White, 5500-6500K - for intensive working and operation, etc.Natural White, 3800-4800K - for ... reading, studying, etc.Warm White, 2700-3500K - for relax, ... BSL-THD5Y-1BLEDs5*1W high power LEDColour cool white/natural white/warm whiteColour Temperature2700-6500K Lumen Output (6000K)>450 ...