Key Features: Base type: GU10/E27/B22 Input voltage:AC100-240V Full range of colors: Cool white, warm white, pure white, red, yellow, blue, green Superior thermal management with internal copper heat conductor and external aluminum housing Light source:1x5w/1x10w /Cree or Edison high power LED Beam Angle:70/120/50/100degrees Brightness degration:3%-5%/1kh Working temperature: less than 62 degrees Celsius Storage temperature:-40~+80 degrees Celsius Lifespan:50,000hours Energy-saving and environment friendly No UV or IR radiation Applications: Replacement bulbs for general Lighting, especially for museums, art galleries, cosmetic counters where UV or IR radiation is undesirable