This is LED lamp. Lifespan:50000H Voltage:12v/110v/220v Usege:Home lighting, hospitals,schools,parks,shops advantages: 1.LED Bulb 1000h just consume 1 degree. 2.LED lamp have a longtime lifespan about 50000h. 3.It can preserve eyesight. 4.Safety factor is high. 5.It will not damage the environment.