ZVS induction heating board kit can be used by DIY players for hardening, annealing and other heat treatments of small parts. Heating circuit adopts 12-48V low-voltage direct current power supplys, maximum current 20A, maximum power 1000W. It can be used with graphite crucible (not included) to smelt gold, silver, copper, aluminum and other metals, heating quickly and evenly. High-quality PCB board heating module, with nice durability, stable performance, wear-resistant and corrosion-resistant. The higher the voltage, the greater the heating current, the effect is better and the heat is greater, choose the right voltage according to the actual situation. Features: ZVS induction heating board kit can be used by DIY players for hardening, annealing and other heat treatments of small parts. It can be used with graphite crucible (not included) to smelt gold, silver, copper, aluminum and other metals, heating quickly and evenly. High-quality PCB board heating module, with nice durability, stable performance, wear-resistant and corrosion-resistant. Heating circuit adopts 12-48V low-voltage direct current power supplys, maximum current 20A, maximum power 1000W. The higher the voltage, the greater the heating current, the effect is better and the heat is greater, choose the right voltage according to the actual situation. Specifications: Material: PCB + Metal Working Voltage: 12-48V Working Current: Max. 20A Output Power: Max. 1000W Item Size: 110 * 100 * 40mm/ 4.3 * 3.9 * 1.6in Package Size: 270 * 165 * 50mm/ 10.6 * 6.5 * 2.0in Package Weight: 545g/ 19.2oz Packing List: 1 * Induction Heating Board 1 * Copper Tube