... no ultraviolet radiation, stable, long lifespan.2.Built in the constant current LED driver.3.Working Temperature: -10 ... and Pb, anti-static, dust prevention, recyclablePower on in 0.01 seconds without twinkle and noiseHigh Energy EfficiencyTop ... box Or customized Structure and Installation MethodColour temperatureApplication Widespread use in Family, School,Office, Showing Room, Meeting Room,Commercial ...