It is pretty difficult for me to built proper housings.

Thats why I decided to recycle my old bike light and update the inner parts with some new interieur.

I bought  a cheap Bike light on Ebay. You may find it still here.

Bike Light with Laser on EBAY

On the bottom it looks like this.

There are two Philips Screws. You may easily unscrew them and open the whole thing up

After that you see the inner parts:

There is not much inside.

2 tacile switches

1 Logic Board

5 RED LEDS

and 2 Red Light Line Lasers

on the other side there is a Battery holder for 2 AAA Batteries.

Looks pretty to integrate a different board in here