1) Base type:E27 base2) Energy-saving and environment-friendly3) Full range of colors: cool white, warm white, red, blue, green and yellow 4) Superior thermal management with internal copper heat conductor and external aluminum housing5) Light source: Edison 10W high power LED6) Luminous flux: 208lumens(color temperature:6600K)7) Beam angle: 50 / 70 / 100 degrees (glass lens, optical grade) 8) Body temperature: less than 53 degrees Celsius9) LED working temperature: less than 62 degrees Celsius 10) Temperature: -40 ~ 70 degrees Celsius11) Brightness degradation: 3% - 5%1kh12) Lifespan: 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.