Use School science experiment electronic equipment negative ion generator small scientific production and so on Feature This circuit works to produce a stable high frequency arc the temperature is extremely high can easily ignite the combustible so it was called a plasma lighter Note This transformer high voltage winding in the inner layer is the segment skeleton wound low voltage winding in the outer layer please do not mistaken for this transformer is high voltage winding and low voltage winding the same way The transformer has two primary winding one of the main group is coarse copper wire a group of fine copper wire for the feedback winding The secondary output is high voltage Transformer in a coarse and a thin winding together two copper wire is positive respectively the main winding tail and feedback winding head connect the power supply positive Before soldering the transformer the soldering part of the enameled wire head of the paint need to gently scraping with blade and then soldering please note Precautions for product use 1 After the successful production the transformer must be sealed with epoxy resin or insulating wax to be used for a long time The air borne work in the air will cause the coil to break through damage due to the lack of air insulation 2 The input voltage of the kit is 3 7v That is a section 18650 battery voltage if you need to increase the input voltage maximum increase to 12V you need to increase the feedback