Make a Shock Flashlight!

About: ––––––––––––––––––––––– "Energy cannot be created nor destroy...

Heres a really fun gadget you can build! A Shock Flashlight!

It will give your victims a powerful but harmless shock!

With my creation of the How to build the World's Smallest Electronic Shocker, it is so small that I can fit it into a flashlight, and use it to give people fun shocking pranks!

This is going to be so fun to shock people with it, and I can guaranteed you to get laughs!!!

So lets build this fun device!

Also for the English people that may not know, a flashlight is same thing as a torch.
And please note that I am only 15 years old and I am not very good at grammar so if you find some parts of the instructable confusing, please let me know and I will try fix it.

Step 1: Get the Things!!

All right, lets get started!
You will need...
  • A flashlight (torch).
  • A very small shocker (you can build one, click here!).
  • Tape (I used electric tape).
  • Some wires.
  • Aluminum tape.

And the tools...
  • Wire strippers.
  • Wire cutters.
  • Soldering iron with solder.
  • Hot glue gun with glue sticks.
  • Drill gun with a small drill bit.

Step 2: Ready, on Your Marks, Get Set, WORK!

Now, lets get to work!

Note: The design of your flashlight may be very different from mine, but I will tell you how I did it anyway...

First, I disassemble the flashlight.

Step 3: Drilling...

I drilled two holes above the switch for the shock wires to go through.

Step 4: Install the Shocker...

Okay, I am going to put the shocker near where the light bulb is, I hot glued the shocker in place and put the -450v wire through one hole and the 0v wire in the another.
Then I attached the shocker's 0v wire to the light bulb's base, and attached the shocker's positive wire to a longer blue wire, you will see why I did this later in this instructable...

Step 5: Make the Shock Pads

Making the shock pads on the switch is a bit difficult, I cut and stripped the wire down to about 1/2 inch. Then made two strips of foil from the aluminum tape and taped it down on the switch and the wires neatly with out having the strips touching each other, if the strips do touch each other, the shock flashlight will not work...

Try make your shock pads very nicely, make it look realistic, otherwise your friend will not touch it...

Step 6: And What About the Wire?

All right! One more last thing I need to do before the shock flashlight is complete!
The shocker's blue positive wire, strip about 1/2 inch of insulation off and tape it down on the positive side of the battery, but do not tape it on top of the battery's "hump" otherwise you will prevent the light bulb to glow, tape it around the "hump"...

If you want your shock flashlight to be very powerful (900v), put the battery with wire taped on in first, then the battery with no wire.
If you want your shock flashlight to be not so powerful (450v), put the battery with no wire in first, then the battery with wire taped on.

And then screw on the flashlight's bottom cap.

Step 7: Have Fun Doing Surprise Shock Pranks!

And you are done! You had built a Shock Flashlight!

Now go have fun by passing around the shock flashlight with your friends, they will think it is a odanery flashlight with a strange switch untill they try to turn it on... The light bulb will glow and the shocker will turn on and shock the user! Have fun with your shock flashlight and doing surprise shock pranks!!!

If you don't want to use the shocker, but the flashlight, just simply take of the shocker's blue positive wire!

Disclaimer: I am NOT responsible for any of your actions with this shocker, and what happens to people that got shocked, it is harmless to healthy people, but it may be harmful to people under age 6, or elderly, or anyone with a pacemaker, or any one who has heart problems...
And don't try give this shock flashlight to kids that is a little above age 6, you might make them cry if they get shocked.

I hoped you enjoyed this instructable!



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    21 Discussions


    7 years ago on Introduction

    is there any instructable for your homemade shocker??? tnx


    9 years ago on Introduction

     I remember when I was 4 I was playing around with a torch and I electrocuted my finger with a 24-volt battery. It made some nodules. Man that as fun and hurt.

    1 reply

    9 years ago on Step 7

    i did something like this, but i used a boxy metal oldfashoned flashlight, i converted it to the led technology and added a 300v shocker conected to a 150uf capacitor, but i'm not sure if it's too dangerous for using in animals or people, do you know if the capacitor is too big?


    10 years ago on Introduction

    When I was in high school a friend of mine build a shock box. I don't know how it was made but I do remember him saying it had a mercury switch in it? I was the life of the party! I remember it had a little lightbulb in it that had mercury and was placed in a box wrapped in tin foil. When you shook it, it gave you a little shock. It was funny placing it under the tree Xmas morning and watch the kids shake the presents. Do you know what this could be?

    2 replies

    Reply 9 years ago on Introduction

    I think he had a 120 volt to 9 volt step up or down transformer and the mercury switch pulsed the nine volt battery through that side to make the other side produce 120 volts and shock you.


    Reply 10 years ago on Introduction

    what he means by a mercury switch is a little glass tube with a drop of mercury in it and two wires at one end and the mercury completes the circuit


    9 years ago on Introduction

    Does this burn you? Is it safe to short circut the -450 and +"ground" wire?


    10 years ago on Introduction

    I got an idea: what if you were to make it so that there was a conductively painted layer where your fingers would grip the flashlight, and the shocker pad in the button/switch?

    i might make a modifide one for my locker that ought to teach those morons who are butterflying my locker : ) but make it so i have a neodidim magnet turn it off so i can open my locker with out geting shocked


    10 years ago on Introduction

    So I tried out Plasmana's torch. One thing to consider is how to make the tape less shiny and noticable. Perhaps a conductive, yet dimming coating exists to keep that "beat up flashlight" look.

    1 reply

    10 years ago on Introduction

    Haha! I'm going camping with a bunch of people this weekend and this will prove invaluable let me tell you! cool idea!

    1 reply