Feature:1. Used for tesla coil principle, output high-voltage pulses, powerful discharge intensity.2. Compact size, high efficiency, stable and professional performance, dependable to use.3. The high-voltage module/generator made by the circuit composed of components, can be used as a high-voltage source for school scientific experiments, electronic devices, negative-ion generator and science small productions.4. 400KV high output voltage, which is practical and dependable to use.5. Built to meet standard specification, strictly follow factory quality control.Specification:Condition: 100% Brand NewItem Type: High-Voltage GeneratorMaterial: PlasticColor: As picture shownModel: HX-GBPGLength: Approx. 4.2cm/1.7inWidth: Approx. 3.8cm/1.5inThickness: Approx. 1cm/0.4inRated Voltage: 3-6VRated Current: 1-3AOutput Voltage: 400KVAbout Power Supply: can use single section 3.7V lipo battery or two series connection, such as 18650 battery, idle mobile phone battery (remove protection board, recommended capacity is above 2000mAh) or nickel-cadmium/nickel-hydrogen battery pack, 4V or 6V lead-acid Battery and so on..Package List:1 x High-Voltage GeneratorNote:Precautions for Using the Module:1. The high-voltage module should avoid being energized when the high-voltage is no-load. Before powering on, the appropriate distance of the high-voltage line end must be adjusted. The arcing distance of the high-voltage line is proportional to the battery voltage and capacity used.2. Experiment from short to long when testing the arc distance. It is strictly forbidden to exceed the maximum arc distance when energized, because the high voltage energy cannot be released and the module is easily damaged.3. The power of the module is large, and the internal is not suitable for heat dissipation, so it is not allowed to work for a long time.4. The method to judge whether the battery capacity can drive the maximum output power is to measure the battery voltage when the arc is drawn. If it is around 6V, it can output the maximum power.5. The two sections of small capacity lipo batteries are connected in series at 7.2V. The measurement voltage has dropped to about 4V in the arcing state. The smaller the capacity, the lower the voltage. Therefore, it is recommended to use lipo batteries above 2000MA, and it is best to match batteries above 4000MA if possible.