3Pcs DC 6V-12V to 1000kv 1000000v 2A-5A Boost Step Up Power Module High Voltage Generator DC Transformer Converter Coil Module

used as a ignition source on homemade weed and army worm burner, these little guys have some serious punch, almost bone chilling to hear it crackle. tried some others and these are nasty, highly recommend don't kill yourself with them

If you plan on keeping it energized like for a bug zapper you will need to add a hinksink and fan. It gets over 250 deg f. At 4.2 volts the no-zap air gap will need to be about 15mm. Would be nice to add a motion detector to see if a bug is near then turn it on and then off.

These ran fine half of a half didnt Main for battery. Even hit my arm once and it was the worst pain I think ive ever felt in my life.This brings up the safety issue though, when you have high-voltage capacitors Capable of storing terrifying amounts of electricity, It is not uncommon to see your sister across the two pause in the capacity to allow a slow bleed down so as to prevent injury from accidental contact across the two leads. These coils DO NOT contain any current bleed down device as youll notice after the arc extinguishes, the secondary wires will give one final “pop” if shorted together after de energizing. Be careful!!

I’d like to give this a 3.5 but can’t. They work, some of them longer than others. My complaint is that on two of them the lead just ripped right out super easily rendering a couple of the units useless fast. Other than that yes I’d recommend. It’s not actually that voltage, it’s more like 10-40kv but worked for what I needed. The reason they don’t last is because these parts are not rated for this voltage, and honestly it would be very hard to build something this small that would be rated for such a task. To mitigate this the components are encased in a solidified layer of epoxy. Little side info for ya.Thank you.

produces a nice .5 to .75" spark. I use a 3.7v Li-ion battery.

These work great with a lithium battery at 3.2 - 4.2 volts but will be ruined at higher voltages. I tried to use 12 volts as described is compatible in the product information but it fried the unit. I suspect it will be ruined with 9 volts too, eventually if not immediately like with 12v.

I use them in short burst and have not had any problems.

I have used these modules (from a different supplier) before with good results. However, upon receiving these, a rudimentary inspection shows the potting is not sufficient to cover the electronics, and therefore these are profoundly unsafe. Amazon should take a close look at this batch. They are going to hurt someone.