Feature: 1. The output of the coil is high‑frequency and high‑temperature electricity, which is a light purple arc when breaks down in the air. 2. Made of high‑quality materials, this high voltage generator is sturdy, durable, not easily damaged, and has a long service life. 3. This high voltage generator has excellent performance and can easily ignite paper, plastic, and even very thin iron wires. 4. Has a wide range of uses, and can be used for general Chinese experiments, electronic instruments, negative ion generators, small scientific productions, etc. 5. Small in size, light in weight, easy to carry, can be carried around, simple to operate and convenient to use. Specification: Item Type: High Voltage Generator Input Current: ≤2A Output Current: ≤0.4A Output Situation: After the Circuit Diagram is Successfully Made, the Coil Output is High-frequency and High-temperature Electricity. when It is Broken in the Air, It is a Light Purple Arc, Without Crackling, but the Temperature is High, Which Can Easily Ignite Paper, Plastic, and Even Very Thin Iron Wires (Such As The Scene Of The Thin Iron Wire Burning In Oxygen During The Junior High School Chemical Test, But Not As Violently As In The Oxygen.) . Package List: 1 x High Voltage Generator (1 x 15KVE-1 Type Boost Coil, 1 x 150 Ohm Resistor, 1 x 107 Diode, 1 x Special Transistor, 1 x Heat Sink, 1 x Screw, 1 x Pin Header, 1 x Switch, 1 x Circuit Board) Note: Precautions for product use:1. After the transformer is successfully made, it must be potted with epoxy resin or insulating wax for long‑term use. No‑Load operation in the air will cause coil breakdown and damage due to insufficient air insulation strength.2. After the kit is successfully made, the applicable input voltage is about 2V, that is, a 18650 rechargeable battery. If you need to increase the input voltage, you need to increase the resistance value (the default resistance of the kit is 120 ohms), otherwise the triode will easily burn out. (Maximum boost 12V)