SNANSHI 5V 4A 20W LED Switching Power Supply Transformer 110V 220V AC to DC 5V output, for LED Strip light for CCTV DC 5V 4A Switch power supply, convert AC 110-220V to DC 5V Wide input voltage range, steady and precise output voltage Universal AC input / full range Widely used as the power adapter for Led strip, LED display, billboard, industrial equipment, etc Protection: Short circuit / Over load / Over voltage