Some customer order emergency led tri proof light , but didn't know how to install and test , and thought the products maybe defective.
First,there 4 input wires of the emergency led tri-proof light , L for Live , N for Neutral ,G for ground , and SL for switch the emergency vapor proof light while electricity is on .The most problems is customer didn't install the switch in right way . As the city electricy normally have 3 wires input , L N and G , the SL of the emergency tri-proof light should connect the L with a switch.
