Duct Tape Mini Flashlight




Introduction: Duct Tape Mini Flashlight

About: I am a former English teacher turned Interactive Media Instructor. I like to make, fix, and take apart. Few things are more fun than taking something apart to turn it into something else, or just taking it a...

In this instructable I will show how to make a duct tape flashlight. I love portable items. The smaller the better. I felt that duct tape would be an excellent platform to create a mini flashlight.

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Step 1: Gather Materials/Tools

For this project I used;

Gray Duct Tape
Aluminum Tape
Three batteries L736
White Led - I know little else beyond the color because I scavenged it.
Copper Wire - I used desoldering braid because it is flexible and provides a good contact point

Step 2: Wiring

The aluminum tape was useful for this step because it is conductive. You could use any conductive material for this step. I used the aluminum tape because it was handy. I would suggest you look at the pictures to follow what I did with the wiring. Explaining it is kind of confusing for me. I imagine anyone reading my explanation would be similarly confused.

The pressure switch I made involved raising one end of the copper wire above the contact point so that I would have to press it down to complete the circuit.

Once you are done wiring put another piece of Duct tape over the wiring.

If you do not know much about LEDs follow this link. I did not use a resistor for this project. Know that if like me you do not use a resistor your batteries will drain very quickly.

Step 3: Final Testing/Thoughts

I tested it after finishing and it worked okay. Some changes I might make would be to use foam to hold the pressure switch and a more rigid piece of copper. Also I wonder if using clear tape to cover the entire thing would make a waterproof light. Another idea I had was to add a magnet and I could stick it to things, like screwdrivers.

This was fun project and I am excited about the possibilities.

Special thanks to shakespeare1212 for making sure I do not set myself on fire.

Participated in the
Duct Tape Tough Contest

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    6 Discussions


    Consider CR2032 and putting your pressure switch on top of the battery terminal. This will make for a flashlight so small you could literally fold your first piece of duct tape over and then find you need to trim off some excess afterward. Combine with a very tiny resistor and you've got something the size of a Photon Microlight.

    King Julien
    King Julien

    9 years ago on Introduction

    My Grandpa just taught me how to solder so I want to do projects like this. I will start this soon.

    It would be a really good idea to add a current limiting resister. Batteries have some build in resistence but by wiring it this way you are letting the batteries drain themselves AS FAST AS POSSIBLE. This will obviously cause the batteries to run out faster, and it also can make your batteries hot, like "I set fires" hot.


    Reply 9 years ago on Introduction

    Thanks for pointing that out shakespeare. I did not think about it at the time of building. Also, don't you think that "I set fires" would be an awesome t-shirt slogan?


    9 years ago on Introduction

    If your ducttape is tight around the LED, it'll be watertight already. Probably a better watertight then clear tape can achieve ;)


    Reply 9 years ago on Introduction

    I thought the same, about the duct tape sealing, Ganoderma. Thanks for the comment.