LEGO LED LIGHT (mini flashlight, led light)

This instructable will show you how to make a cool and very useful mini LED flash light that will prove very useful.

I don't know if this has been made before. I decided to make one because I wanted to make something myself because I find it gives me a sense of achievement.


I was motivated to make this because I hate not being able to find the key hole for my car, this is not only annoying but you can accidentally scratch the paint on your car. (I don't have central locking)

Step 1 Things you will need / Ingredients / Materials

Materials:

> 5mm LED (colour of your choice)

> Small 4x2 LEGO brick (colour of your choice)

> Switch or momentary on switch (I used one of the small square ones because they are easily found and easy to use)

> Small gauge wire

> Soldering iron and solder

> Hot glue gun and glue sticks

> A key ring (I didn't use a key ring but used some thick electrical wire)

> 3 mini cells (I got mine from a A23 battery)
http://www.instructables.com/id/12-Volt-Battery-Hack!-You_ll-be-Surprised.../

> Some way to hold the cells (see pictures)

> Dremmel (Not necessary but useful)

Comments

[D5quar3]

 how do you put the 2x4 brick on the bottom did you glue it?

[Davidnipp]

 Yes, I just glued it in with some hot glue. When i glued it i also filled the empty spaces inside with some glue just to make sure nothing moved about.

[D5quar3]

 thanks i built it today

[Lotsafish]

Very nice, I assume you used a 2x4 lego brick for the underside, my question is do you cut off the circular on th top of it before glueing it on or not - or does it not matter?

[Davidnipp]

it doesn't really matter, as long as it fits.

[Heywasup]

how do u hollow the inside of the lego?

[Davidnipp]

i started by using a pocket knife but it was taking to long so I got out a dremel and with one of the sanding attachments was able to hollow it out well. hope this helped

[cress]

Would it be possible to put the switch inside the lego brick and just have the actual circular button poking out?

[Davidnipp]

Yes, it would probably work. It's a good idea but you would have to carve out some of the brick from the inside to make sure the button was able to be pressed.

[cress]

Aaa ye cool I may just leave it on the outside then...also how do you wire up the switch...I have one like yours with 4 contacts...do all 4 have to be wired together?

[Davidnipp]

no, you only have to wire up to 2 of the prongs, its a little bit of trial and error getting the switch configuration right.

[patapon]

good luck!

[TXTCLA55]

nice ible, I remember trying to make one like this when I was young; however I only got as far as getting a light bulb!