Features: brand new and high quality This module is a high voltage module/high voltage generator. Made of high voltage package/transformer through component circuit. It can be used as a high voltage source for student science experiment/electronic instrument/negative ion generator/scientific small production. The principle of the coil is made. The high-voltage pulse is output, the volume is small, the efficiency is high, and the discharge intensity is fierce. Specifications: Input voltage: 3.7V-7.4V Input current: 0.5A-1A Input wire length: 9 cm High voltage type: pulse DC type Output voltage: 800KV-1000KV (please pay attention to safety when using) Output current: 0.5A-1A Output length: approximately16 cm High voltage bipolar discharge distance: 1.5 cm -2 cm Size:88x26mm(LxD) Package Includes: 1 x High Voltage Pulse Inverter note: 1. high voltage module should avoid the use of high voltage no-load, power must be adjusted before the high voltage line end of the right distance, high voltage wire drawing distance and the use of battery voltage and capacity is proportional to. 2. the test arc distance from short to long experiment, when the power is prohibited beyond the longest arc distance, due to the high pressure energy can not be released,very easy to damage the module. 3. the power of the module, the internal heat is not heat, so not a long time to work.