This is a 15kv High Voltage Ionizer inverter kit. (soldering skill needed) It comes with many electronic components and a high quality PCB board. This kit would be great for those beginners of both electronic and soldering while building something useful and having fun. When fully assembled and powered with 3.7-7.2V, this inverter will produce 15kv-20kv. This high voltage can be used for many things. For instance, because of the high voltage, it is also very high temperature, and thus it can be used to build your own lighter. Instruction: It’s self-explanatory. You do need to scrap off the coating on the copper wires to make a connection!!