1.It can use in wide range voltage.installed the high efficiency LED drivers in the LED flashlight bulbs, used in the required voltage, light safe and will not be damaged while brightnees is basically little changed. 2.With long life,lifetime more than 50,000 hours. 3.With good aseismatic. 4.Under the same power condision,the lumence is higher than the incandescent. 5.Good power-save,the same battery,lit for a longer time. 6.Replace the existing flashlight bulb directly,condencer through the original condencer Cup. 7.Belong to the product of GEP and energy saving. 8.Easy to replace when damaged,without professional maintenance. 9.Use the sdandard lampholders to replace the existing torch-lights.