Base type: GU10/MR16/E27 available Energy-saving and environment-friendly Full range of colors: cool white, warm white, red, blue, green and yellow Superior thermal management with internal copper heat conductor and external aluminum housing Light source:3W high power LED Luminous flux: 113 lumens(color temperature:6200 K) Beam angle: 50 / 70 / 100 degrees (glass lens, optical grade) Body temperature: less than 53 degrees Celsius LED working temperature: less than 62 degrees Celsius Temperature: -40 ~ 70 degrees Celsius Brightness degradation: 3% - 5%1kh Lifespan: 50,000 hours No UV or IR radiation Application: Replacement bulbs for general lighting, especially for museums, art galleries, cosmetic counters where UV or IR radiation is undesirable.