... 3)It is more energy saving and environmental than the traditional incandescent lamps, noiseless, flicker-free, extremely ... non-ultraviolet and infrared rays. 4)According to the needs, the color temperature can be selected from 2700K to ... +50°COperating Life50000 hourProduction Size50×105mm Appication : applicable to the residential, commercial, corridor, hotel, reference room, school, musium, hospital, ...