NEW VERSION AC TO DC CONVERTERNew Upgrade 360w converter build with Imported Aluminum alloy shell, Built-in wire integrated design, Dual power connection methods, Very convenient for 12V devices with clamps, SWTPWR's 30 amp power supply come with ul power cord, 12v converter with switch, wire lugs, metal clip and screw. Super convenient for devices with clamps. You can clamp to the two cylindrical contacts directly. It is a patent design of 12v dc power converter.