This ZVS Induction Heating Board takes it excited circuit design, includes 5-band resistors and 1.6mm double board. Features: Includes 5-band resistors, ensure more stable performance. Built-in 2 capacitance placed side by side. Made of 1.6mm double board for more durability. Extra power line tin, more strong current-carrying capacity. Comes with extra copper nuts for high-frequency transfer. Specifications: Material: FR4 Input Voltage: DC 12V~30V Max. Current: 20A Power: 1000W Board Size: Approx. 8.4 * 6.8cm / 3.31 * 2.68in Item Weight: Approx. 165g / 5.82oz Package Size: Approx. 9.5 * 8 * 3cm / 3.74 * 3.15 * 1.18in Package Weight: Approx. 174g / 6.14oz Package List: 1 * ZVS Induction Heating Board 4 * Screws 4 * Copper Nuts