KNACRO DC 12V 33A 400W Power Supply Switch Converter for LED Strip DC 12V 33A Switching power supply, convert AC 110/220V to DC 12V. Protection: Shortage Protection, Overload Protection, Over Voltage Protection. Safety Compliance CE and RoHS, high efficiency and stable performance. Wide input voltage range, steady and precise output voltage. Great power transformer for electronic equipment, Led Lighting, home appliance etc.