This section of induction heating using low-voltage DC supply 12-48V. Maximum current 20A, maximum 1000W.This circuit can not only do the induction heating, the copper tube into the high-frequency transformer, is a powerful inverter. To increase the heat sink using a customized substrate as thick as 85mm Cooling capacity is very powerful.Tested 53V supply when working properly.Because of its moderate , can be used for small parts DIY players do hardening, annealing and other heat treatment, Also can be used with a graphite crucible melting gold, silver, copper, aluminum and other metalsUniform heating fast, very convenient. Using the pillars, fever smaller, more efficient. Although this circuit can tolerate 20-30A input current moment, but do not exceed 15A when safe work, you can easily add an ammeter between the supply and heating driver board but always monitor the current overload.Notes: The kit contains a full set of driving circuit elements and brassBuyers need to bring their own and cooling unit.The circuit board using double-sided fiberglass board, mainly copper traces are used to widenUse the entire back surface of the resonant circuit common,Continuous work, please add a fan to blow down from above,To the resonance capacitors and other components cool.The use of switching supply Please note that due to high are generally slow start function,which just opened machine output voltage is slowly rising,while it is turned on before the induction heating circuit if the voltage rises to 12V,because start insufficient voltage can not afford to vibration,resulting in two simultaneous conduction mos tube so burned components.So the first will start switching supply voltage reaches 12V above and then access the induction heating circuit.The volume of the object being heated inside the heating coil can not exceed 1/5 of the volume(if the heating cylinder, then heating coil diameter less than the diameter of 1/3),or it may be due to overload or burn out the supply to the circuit.colour: blackMaterial: metalsize: 850 * 70cmPackage Contents: 1 x moduleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.