ZVS Drive Board Kit Boost Voltage Generator Power Supply Induction Heating ModuleFeature:Size: 74mm * 77.8mmInput voltage: DC 12V-30VPower requirement: Less than 12V≥5A、 above 15V ≥15AOperating frequency: 30kHz-50kHz adaptiveSecondary Parameters: 5T + 5TAbout the length of the discharge arc: Input voltage 12v \/ 5A、 the high voltage discharge arc distance is about 1-2 cm. The greater input voltage and current increases、 the greater output power、 the longer discharge arc distance、 when input the maximum 30v \/ 10A、 distance can up to above 5cm. If the arc is too short、 please check the input power is sufficient.About power: Power output circuit depends on your input power、 if you only 30W power supply、 even if you want to be a 200W zvs、 is can not up to the output of 100w or 200W、 so the input power must be adequate、 power = voltage * current!Note: This is a DIY kit、 you need to have some knowledge of electronics and ability.This product does not provide instruction.Package includes:1 x ZVS Tesla Coil Drive Board Kit