High efficiency and energy saving under the condition of the same brightness LED energy-saving lamps for one thousand hours only 1 KWH ordinary incandescent lamp seventeen hours 1 KWH ordinary energy-saving lamps one hundred hours spent 1 KWH; Super long service life service life can reach hundreds of hours; Health light no ultraviolet and infrared light no radiation; Green environmental protection does not contain harmful elements such as mercury and lead recovery and utilization won't produce electromagnetic interference; Protect eyesight DC drive no stroboscopic ordinary light is ac drives is bound to produce stroboscopic; Light efficiency high fever is small 90% of the electricity converted into visible light ordinary incandescent bulbs 80% of electrical energy into heat only 20% of electrical energy into visible light; High safety factor the required voltage and current is smaller no potential safety hazard can be used in the mines and other dangerous games.