Holy Feather 400kV High Voltage Generator Module - DC 3.7V-7.4V to 400,000V Boost Converter, Arc Pulse Generator for Science Experiments & Educational Demonstrations, 2-Pack Set

["【Extreme Voltage Conversion】 This powerful high voltage generator transforms low DC input (3.7V-7.4V) into an impressive 400,000V output, creating dramatic 10-20mm electrical arcs perfect for educational demonstrations and scientific experiments.","【Advanced Tesla Coil Technology】 Utilizing authentic Tesla coil principles, this compact module generates intense pulsed high-voltage currents with remarkable efficiency, requiring only a simple external circuit connection to operate.","【Robust Power Handling】 Designed for 2A-5A input current range, this module delivers exceptional performance when powered by common battery sources including 18650 cells, phone batteries (protection removed), or NiMH battery packs.","【Compact & Complete Design】 Featuring an integrated high-low voltage system in a space-saving Φ24×65mm housing with 100mm output cables, this ready-to-use module eliminates complex assembly while delivering professional results.","【Versatile Educational Applications】 Ideal for science classrooms, electronics workshops, and DIY projects including high-voltage ignition systems, ion generators, plasma experiments, and physics demonstrations."]