Features: 1) Adopts (PWM) switch technique design, constituting from the professional integrated circuit, the credibility is high 2) Economized on energy efficiently, the service life is long, compared with the common transformer can save energy about 40% 3) Applies electric voltage scope breadth, charged barbed wire net electric voltage 4) Outputs electric voltage stability, the LED light gives out light effective, the life span is long 5) This switch power supply contains various specifications of designs, suitable for the application of various LED lights 6) Water proof electronic LED driver