2 Piece LED On Off Flashlight

This is a small, cheap easy to build LED flashlight. Most simple one on instructables. Cost is about a dollar.

Step 1: Materials

Here they are:
LEDs
Coin Cell
Soldering Iron
Solder
Sandpaper

Comments

[guitar-is-awesome]

could this work in a mask with a reflector? maybe a red LED?

[pancho del rancho]

hey ima use tis in my psp instead of going through and taking out the screen and stuff i was wondering will they work on a smaller battery if it was the same volts please respond

[eranap]

two magnets soldered on to the lead could do the job. and when you want it disconected slip in a piece of paper. i think

[marc92]

This also wouldn't work. You can't solder to magnets because they will lose their magnetic power.

[magicpocket]

Ridiculous on so many levels

[GorillazMiko]

i used to solder on batteries, dont ever do it. realllll bad idea.

[Darkshot]

wow................................................................................................................you were dumb enouf to actually solder a battery? wow.......................................................they explode you know if they get to hot or the battery acid leaks out and carbon dioxide comes out how do i know this? **cough** lets just say i have some um...experience with this stuff

[troublemaker]

You SURE about EVERYTHING??? REALLY???

[meddler]

Maby you could just hold the wires on the battery with a large aligator clip if you don't want to solder it?

[pharoah]

Soldering could cause the cell to explode. Using one alligator clip to hold the 2 wires on would cause a short. The simplest way would be tape.

[zjharva]

um actually it doesn't, as long as you don't leave heat on it for a minute or two it works fine

[zjharva]

sure, souns god

[meddler]

Black electrical tape right?

[zjharva]

what do you mean?

[acaz93]

Aka : a throwie look-alike without magnet ;)

[zjharva]

not really, well i knew soeone would do this, but these ar much brighter nd have on/off ability

[ironsmiter]

Use low temp solder, and only JUST enough to make it stick, and it'll be fine. If you get the battery too how, like using a 45W iron for 2-3 min, it'll boil, the pop. if you're really worried about ssafety, and/or don't/can't solder..... Get some arctic Silver CONDUCTIVE epoxy, and use that instead. Just about any conductive epoy will work, or heck, if you're careful, a dab of hot glue (thin near the edges, and thik in the middle for better hold) will suffice

[betweenthelinez]

Can anyone tell me how to print the instructions without losing the areas that have been outlined with the yellow box. Every time I try to print out instructions with the box, I end up with a white box, or dead space. Any help would be most appreciated! Thx

[i make shooting things]

Im not sure but i think soldering onto a button cell can be dangerous, just wanted to let you know. I have know idea wether this is true or not, just a throught

[Sgt.Waffles]

Thats really easy. I am terrible at soldering, but it sounds like a neat idea. i could probobly make some sort of case for it too. good instructable. +

[meddler]

P.S. maby there is a way to mount this in a empty film canister?

[meddler]

I have been looking for something just like this. I don't know much about electronics, but i can solder ok.Now i can read at night without bugging my wife,i'll just keep it on with a clothes pin.