Insanely Bright LED Keychain to Flashlight Mod

Keep in mind, this room was pitch black a moment ago. Here’s another fantastic tutorial from Jay, a DIY lasers expert. See all of our DIY LED and Laser Projects.

Take an ordinary, boring LED keychain and turn it into a super powered LED as bright as a flashlight. For a very bright Key Chain LED flashlight, I modified the ‘Task Force’ key chain light from Lowe’s using a Q5 emitter, and a 200mAh capacity 10280 Lithium rechargeable battery. I also modified the light with an aluminum reflector and glass lens to give it some nice ‘throw.’

The Build:

Modifying a clicky switch and circuit:

The 12mm clicky switch has to be ‘trimmed’ or sanded on the edges and corners to fit the tiny host as shown in these pictures…

Modifying a reflector and glass lens:

I machined to size the reflector, and re-sized the glass lens from the Cree light that I linked above…

Of course, I had to trim the emitter to size, and make a custom heatsink as well. The emitter is glued to the custom heatsink with thermal adhesive.

Final Results:

The Key Chain light is very bright now! Using a 200mAh capacity lithium battery, with a 332mA battery current draw, I would expect about 45 minutes between charges. Hope you enjoyed my Key Chain LED flashlight modification! – Jay

This post was submitted by a Hack N Mod fan, just like yourself. If you’d like to earn money from your projects, feel free to contact us.

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