Features ZVS: The coil drive board heaters have 0 voltage switching, which can reduce your switching loss during your use to get the purpose of saving. Professional Made: The drive circuit of this coil drive board heaters are made of high quality components, which are reliable and powerful and can greatly improve your efficiency. Multiple Power Supply Methods: The coil drive board heaters can be powered by switching power supply, lithium battery pack, or by transformer after rectification and filtering, and the filtering capacitor is not less than 10000uF. Reliable Performance: The circuit board is double sided, using the entire back side as the resonant circuit alignment, with low resistance, less heat generation, good heat dissipation, and excellent performance. Scope of Application: These coil drive board heaters can be widely used to drive spark for Tesla coils (SGTC), for Jacob's ladder, for Marx generators, etc. Please adapt them to the actual situation. Specification: Item Type: Coil Drive Board Heaters Material: PCB, ABS Use: Widely used in driving spark for Tesla coils (SGTC) and for Jacob's ladder, for Marx generator and other devices Package List: 1 x Driver 1 x Control Board Package List 1 x Driver 1 x Control Board