This product is an non-isolated switch regulated powersupply, with rated input voltage of 24Volt and output voltage of 12Volt. Features: The high strength of the iron material is fully protected. Active heat dissipation, no heat accumulation due to double fan intake. Open holes on both sides to efficiently improve heat dissipation efficiency. Built-in/external in fuse to ensure safer working. Overload protections, overtemperature protections, high voltage protections, low voltage protections, reverse connection protections, short circuit protections. Specifications: Current: 30A, 40A, 45A, 50A, 60A (optional) Color: black Material: iron Item size: 160 * 138 * 42mm / 6.3 * 5.4 * 1.8in Package size: 190 * 145 * 50mm / 7.5 * 5.7 * 2.0in Package weight: 750g / 1.7lb Packing List: 1 * Voltage Reducer