LED emergency driver is a half power output emergency driver it's suitable for all 3W to 60W LED lamps with external driver,This LED emegency driver emergency lighting power is 4W when power failures suddenly. LED emergency driver can be used in public places to ensure LED lights work normally because of fire and earthquake and etc.This LED emergency driver would not influence its environment and power around when it works. This emergency battery pack is ideal for use in hospitals, offices, schools, universities, shopping centers and other public buildings. if the power goes off suddenly. This time if there is an emergency power supply installed in LED lights, there will be no panic and confusion caused by power outages suddenly. Input power for led lights: 3-60W Emergency power: 4W Battery type: built-in Li-on 3.7V 2400mAH Emergency duration time: 2/3 hours Battery cycle time: 500-800 times Working input/output voltage: AC85-265V , DC10-175V Charge time: ≤24 hours…