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.’
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.
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