DC 3.7-6V to 400kV Boost High-Voltage Module MC-105
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Prices updated: 13 Oct 2026
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About this product
A compact Tesla-coil style boost module that steps a 3.7-6 V DC input up to a listed 200-400 kV pulsed output, for physics demonstrations and high-voltage experiments. The listing gives an input current of 4 A and an output current of 0.5 A. The output is extremely dangerous and must be handled only with full safety precautions.
Specifications
- Input voltage
- DC 3.7 - 6 V
- Output voltage
- DC 200 - 400 kV (as listed)
- Input current
- 4 A
- Output current
- 0.5 A
- Dimensions
- 65 mm length, 24 mm diameter
- Discharge distance
- About 1.5 cm (as listed)
- Power source
- 3.7 V Li-ion, single or two in series (18650)
Frequently asked questions
What power source can I use?
The input is DC 3.7-6 V, and the listing mentions one 3.7 V Li-ion cell or two in series, such as 18650. Use a correctly rated battery arrangement with its protection circuit intact, and never bypass protection.
How do I use it safely?
The output can reach hundreds of kilovolts. Keep hands and conductive objects away from the output, use insulated tools, and keep the discharge gap within the listed 1.5 cm, since the listing warns that larger gaps can damage the module.
