Features: This product is a booster coil production suite, the circuit is simple and reliable, with a professional line drawing, electronic research convenience enthusiasts. Uses: high school science experiment, electronic equipment, negative ion generator, scientific small production. This circuit is generated when the stable high frequency arc, high temperature, can easily combustible materials, so it was called the plasma . Transformer structure: There are two primary windings, a primary winding, a feedback winding, the secondary output of high pressure. Other: 15KV transformer designed for maximum output, limit output cannot exceed 15KV, is one centimeter arc, a higher output voltage is likely to damage the transformer., Manufacturer: Ounfhtrttk