Features: 1) Base type: E27 2) Input voltage: 85 ~ 240V AC 3) Full range of colors: cool white, warm white, blue, green, red, yellow 4) Superior thermal management with internal copper heat conductor and external aluminum housing5) Light source: 10W high power LED6) Luminous flux: 500 lumens 7) Beam angle: 50 / 70 / 100 degrees (glass lens, optical grade) 8) Body temperature: less than 53 degree Celsius 9) LED working temperature: less than 62 degrees Celsius 10) Temperature: -40 ~ 70 degrees Celsius 11) Brightness degradation: 3% - 5%1kh 12) Life span: 50,000 hours 13) No UV or IR radiation Application: replacement bulbs for general lighting, especially for museums, art galleries, cosmeticcounters, where UV or IR radiation is undesirable producing area:China payment:T/T in advance or L/C at sight supplying capacity:50,000pcs/month