Henxlco AC 110V-260V to DC 12V Outdoor Waterproof IP67 Transformer Power Supply Driver Adapter CCTV Camera Security System LED Strip Light (120w) Input: AC 110-260v; Output: DC 12V ; Waterproof IP67, for outdoor use. Constant voltage output, to ensure the stability of the power supply; With the anti-interference function, to ensure the long-life LED lamps Notice 1, The input: In order to be safe, please note the Live Wire, Neutral Wire, Ground Wire. If you connect wrong, power supply will not work. Notice 2, The output: Please note Positive and negative pole. Notice 3, 80W 100W 120W 150W 200W: There are 2 output wires, If you only use one output wire, You'd better put some insulating tape on the other output wire's joint seperatly. Otherwise it will cause short circuit. With the functions of overvoltage protection, short circuit protection and overload protection Why does it stop working Maybe the overcurrent protective switch (in the power supply) disconnect. You need to wait about 10 minutes. It will be auto recovered. Then reconnected it, it will work well.