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 general science experiments, electronic instruments, negative ion generators, and scientific small projects. The module is fabricated using the Tesla coil principle, which outputs high-voltage pulse current, with small size and high efficiency. The peripheral circuit is simple (only requires a switch and battery), and the discharge intensity is strong. 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 differences in lighting and screen settings, the item's color may be slightly different from the pictures. Please allow slight dimension differences due to manual measurement. Package Includes: 1 x Voltage Generator