---
product_id: 175396603
title: "DEVMO DC 3V-6V to 400kV 400000V Boost Step-up Power Module High-Voltage Generator"
brand: "devmo"
price: "R$203"
currency: BRL
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.br/products/175396603-devmo-dc-3v-6v-to-400kv-400000v-boost-step-up
store_origin: BR
region: Brazil
---

# 400kV Output 3V-6V Input 1 Min Limit DEVMO DC 3V-6V to 400kV 400000V Boost Step-up Power Module High-Voltage Generator

**Brand:** devmo
**Price:** R$203
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Up Your Projects with 400kV Brilliance!

## Quick Answers

- **What is this?** DEVMO DC 3V-6V to 400kV 400000V Boost Step-up Power Module High-Voltage Generator by devmo
- **How much does it cost?** R$203 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/175396603-devmo-dc-3v-6v-to-400kv-400000v-boost-step-up)

## Best For

- devmo enthusiasts

## Why This Product

- Trusted devmo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Designed with a 1-minute usage limit to prevent overheating.
- • **Versatile Input:** Compatible with a wide range of DC inputs (3V-6V).
- • **Unleash the Power:** Transform low voltage into a staggering 400,000V!
- • **Compact & Efficient:** Lightweight design for easy integration into your projects.
- • **High-Pressure Performance:** Achieve impressive discharge distances of 10mm to 20mm.

## Overview

The DEVMO DC 3V-6V to 400kV Boost Step-up Power Module is a high-voltage generator that converts low DC voltage into an impressive 400,000V output. With a safe usage limit and versatile input range, this module is perfect for various applications requiring high-pressure performance.

## Description

DEVMO DC 3V-6V to 400kV 400000V Boost Step-up Power Module High-Voltage Generator

## Features

- ★Output voltage: 400000 v(Please pay attention to safety)
- ★High pressure type: the type of pulse current
- ★input voltage: DC 3 V to 6 V,Input current: 2 A - 5 A
- ★High pressure discharge distance between: 10 mm - 20 mm.To avoid burning, use the time limit for 1 minute.
- ★Package Includes:1pcs 400000V Boost Step-up Power Module.

## Product Details

- **Brand:** DEVMO
- **Color:** Red
- **Item Weight:** 0.07 Kilograms
- **Input Voltage:** 6 Volts
- **Output Voltage:** 400000 Volts

## Images

![DEVMO DC 3V-6V to 400kV 400000V Boost Step-up Power Module High-Voltage Generator - Image 1](https://m.media-amazon.com/images/I/61uIo+4wxhL.jpg)

## Available Options

This product comes in different **Number of Items** options.

## Questions & Answers

**Q: Is there a good way to extend the output leads? I need them to be longer than they currently are.**
A: Strip the outer end of the wire about 5mm and solder on longer wires. Then heatshrink the joined part for insulation.

**Q: is the output a ground and a high positive or high negative, or is the output a high negative and positive?**
A: i beleive it is 3 volts dc to an inverter with high volts AC   out   not DC out

**Q: Is the output voltage ac or dc?**
A: AC. Probably around 40 000V peak to peak. Low amps.

**Q: How can it be 400kv if the output leads are only 1 inch apart and use ordinary 250v insulation?   if it was more than 25kv it would just arc the leads**
A: Well, first of all, that's not ordinary insulation.  I didn't test it, but it looks like kynar.  The maker used good output wiring.  I'm not going to back his claim of 400KV, because I personally have not taken one of the units into my lab and measured it, but I know a good bit about HV.

Don't assume that the breakdown characteristics of air are linear.  They're not. Under normal kitchen table conditions, you can draw 4 inch sparks from a 20kv source.  Once a plasma conduction path is established, it is self-sustaining as long as the current keeps it hot.

## Customer Reviews

### ⭐⭐⭐⭐⭐ These ROCK!!!
*by D***T on January 18, 2022*

Major Warning!!! Treat these modules with respect. They will set you on your you know what if you aren't very careful. A *brief* touch to a 9 volt battery will pop out an inch long spark and a loud snap. They are NOT rated for 9 volts, and operating in that range will destroy them quickly. The dielectric properties of insulation are absolute. Exceed it, and it perforates. Period. I marked the module I tested, and plan to discard it. They are also not rated for high current, so include a (high voltage) resistor in your final circuit. Remember that at 400 kilovolts, it only takes a current of 0.0025 milliamps to produce 1 watt of current. And that would probably be about the limit to these, unless someone wants to do some destructive testing. Quarter watt resistors aren't going to do the job, which is why I said HIGH VOLTAGE resistors. If you don't run them continuously, and don't exceed the input voltage constraints, great. Just don't complain when they stop working.

### ⭐⭐⭐⭐⭐ BEST HIGH VOLTAGE MODULES ON THE MARKET !
*by T***. on May 20, 2025*

Best HIGH VOLTAGE MODULES you canbuy !!! I've been using these modulesfrom this company for several years --- and never had an issue with them !These modules will last a long time if you use them right and take care of them !The best battery to use with these is a3.7volt lithium-ion battery (18650) !Also, just always fire them in short bursts--- or they will burn out ! These modulesAre not designed to be on for any lengthof time !Also, it is best to keep the dischargeterminals about 1/4"--1/2" apart !If you have them too far apart --- this couldalso damage the modules (although theywill certainly produce bolts several incheslong) !These modules produce very loud,crackling noise when they discharge ,and very bright light too !The red wire is positive (+) --- the greenwire is negative (-) --- this is the end that connects to the battery !On the other end, you will have two wiresthat are the same color (usually black) ---this is the OUTPUT END --- these are the two wires that carry the high voltage ---DO NOT touch these two wires if you have the battery connected to them --- or you will get the SHOCK OF YOUR LIFE !!!Anyway --- if you need some very highvoltage modules for your DIY project ---these are definitely the ones to get !VERY HIGH QUALITY !!!DEFINITELY WORTH THE MONEY !!!

### ⭐⭐⭐⭐ Work well but the device is fragile
*by A***Y on February 21, 2024*

I tested these using a hydrogen spectrum tube as the load it creates is very stable compared to a spark gap. These tubes require only 3-5 kV so the output is obviously nowhere near to 400kV. At 5V in the current draw was close to 4A. It started getting slightly warm after less than a minute - I have not tried running it for longer.

## Frequently Bought Together

- DEVMO DC 3V-6V to 400kV 400000V Boost Step-up Power Module High-Voltage Generator
- 9V Battery Connector,10 PCS T-Type 9 Volt Buckle Connector Hard Plastic Shell Used in Student Experiment,or Other Equipment with Battery
- WGGE WG-026 10 Pieces and 5 Colors Test Lead Set & Alligator Clips,20.5 inches / 22 AWG Copper Wire. The Clips soldered and Stamped to The Wires. (1 Pack)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-04*