The high-voltage module is designed using the coil principle and outputs high-voltage pulse current. It features a compact size, high efficiency, and a simple peripheral circuit—only requiring connection to a switch and battery for operation. The discharge intensity is notable. This step-up module functions as a high-voltage generator with an input voltage range of DC 3V to 6V and an input current of 2A to 5A, producing an output voltage of 400,000V. Please exercise caution due to the high voltage. The arc generator operates with an input voltage of DC 3V to 6V and outputs DC 400,000V high voltage. Input wiring: red for positive, green for negative. Output wiring: same color cables on the other side. This 400kV boost module can be used for scientific experiments, electronic equipment, negative ion generation, and as a high-voltage source in small-scale DIY science projects. The high-pressure discharge distance ranges between 10 mm and 20 mm. To prevent overheating, limit continuous use to no more than 1 minute. Color: Black Material: ABS Package Contents: 7 x 400kV boost step-up module Note: The package includes only the items listed above. Other products are not included. Lighting and display differences may cause slight variations in the color of the item as shown in images compared to the actual product. Measurement may vary by +/- 1-3 cm due to manufacturing tolerances.