Specifications: After inputting DC3.7V-6V at the input terminal, DC high voltage of tens of thousands of volts can be obtained at the output end. It can be used as a high-voltage source in the general science experiment, electronic instrument, negative ion generator, and scientific small production. The module is fabricated using the Tesla coil principle, which outputs high-voltage pulse current, small size and high efficiency. The peripheral circuit is simple (just need to connect the switch and the battery), the discharge intensity is fierce. Type: Voltage Generator Material: Plastic Shell Working Voltage: 3V - 6V Working Current: 2A - 4A Output Current: 0.005A Features: Power Module, Voltage Boost, Arc Generator Size: 88.5mm x 26mm x 24mm/3.48inch; x 1.02inch; x 0.94inch; (Approx.) Cable Length: 12cm/4.72inch; (Approx.) Notes: Due to the light and screen setting difference, the item 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Voltage Generator