AEDIKO 2pcs High Voltage Generator DC 6-12V to 1000kV Boost Step-Up Inverter Arc Pulse Generator Power Module High Voltage Transformer

These work perfectly. At 5V they draw about 1-2A and will arc about 1-1.25”. That suggests that they are more like 200,000V, but still loud and very cool. Trivially easy to use and wire up. Cannot speak to durability, but so far, they haven’t fried.

Ive used these generators with 12v 60watt batteries to eliminate hornet nests. They work very well in short bursts.

Don't believe any of the specifications: Not 400,000 or 1000kV or 6 Volts input Don't apply more than 3.7 Volts ( 1 LiPO battery ) Don't run for more than a few seconds without a cool-down Don't expect long service life as a Jacobs's ladder or as an ignitor Don't run open circuit or short circuit on the HV side: a 3/8 inch gap is reasonable Don't think that you can't hurt yourself or someone else ... or start a fire or fry nearby electronics. On a laboratory power supply, this drew almost 3 Amperes at regulated 3 V supply, 3.8 Amperes at 3.7 Volts. It will not survive more than a few seconds at the suggested 6 Volts. A single LiPO cell at slightly more than 3.7 Volts will produce a satisfactory arc of over a half inch with noticeable heating of the device at fifteen seconds run time. If you do some research, you will find that: A 400,000‑volt (400 kV) source can produce an electrical arc in air roughly on the order of 1–2 meters under typical laboratory conditions. That is the truth. This device specification is total fantasy, sucker ! For a 3/4 inch (0.75 in ≈ 19 mm) air gap, you typically need on the order of 50–60 kV to reliably strike an arc under normal lab conditions (dry air, room temperature, atmospheric pressure). This is what your device might produce. This toy SHOULD be described as 50 KV from 3.7 Volts input. That in itself is pretty awesome and might be a reason to buy this very inexpensive device Over heating or overvoltage will produce classic smelly white smoke and blistering of the epoxy encasement material. The power supply wires from a hefty battery might light up the flimsy power wires of the device resulting in more smoke and blackened plastic. At two for $ 6.99, either way it is good entertainment. Run it at 3.7 Volts for very short times into a half-inch arc - WOW ! or overvolt it and take pictures of the result .. telling a sad little story ... but don't bad mouth the device if it can't do the impossible. So, FOUR STARS for value, function, entertainment. Lost one star for making YOU believe something that you really know ain't possible. Does that deserve a thumbs-up ?

Wow, these are nice, good spark

it can shock you alright

They burn out too fast

I purchased a 5 pack of these dynamos. I attached a nine volt battery to the black and red (line) leads, but there was no current at the other (load) end. I tested all five with two batteries. Then I tested all 5 with a multi meter and found no flow of electricity from one side of the dynamo to the other. There was however, continuity from the black lead to the red lead. This was true for every voltage generator. I returned that first five and quickly received another five. All of these new ones tested identically to the previous five. It looks to me as if they have a defective manufacturing process and no quality control. I would like to retract this review. I used a fresh battery and ended up shocking myself.

These are simply amazing for the price. I'm building my own wasp killer that I mount on a pole and trigger it from a safe distance. I'm one of those "prove it" guys and yes it knocked me right on my butt!

Ich habe sie mal zum ausprobieren an einen 9V Blockakku angeschlossen, nichts. Dann an ein Netzteil (12V) und habe mich ganz furchtbar erschreckt. Alle Achtung, das knistert ordentlich. Nachdem ich den Blockakku dann frisch geladen hatte, brutzeln die Dinger auch damit schon recht beachtlich. Ich sag mal so 10-15mm zwischen den Ausgangsdrähten überbrückt das dann schon. Da fallen mir bestimmt ein paar lustige Experimente zu ein. Schönes (nicht)Spielzeug.

i made something amazing with these and theyre fantastic

Good working condition

ممتاز جدا

4 out of 5 worked other 1 just started to smoke and heat up