SP Electron DC 3V to 400kV 400000 Boost Step-up Power Module High-Voltage Generator Electronic Components Electronic Hobby Kit

This is a high voltage step-up power supply module, which is commonly used in electronics experiments and demonstrations. The module can generate a voltage of up-to 400KV from an input of 3-6V from a normal Li-ion battery. The high-voltage module uses the principle of the Tesla coil.