The module is made according to the Principle of coil, the high voltage can up to about 15KV at the output High voltage pulse current output, it can easily and quickly turn on It can be used as high voltage source for high school science experiment, electronic instrument, negative ion generator and small scientific output When the circuit is working, it produces a stable high frequency arc, the temperature is very high There are 2 sets in disassembled parts, very popular among electronics enthusiasts, widely used for electrical research and DIY use, Manufacturer: Walfront