Simple step down converter case.

This is a little case I made for step-down converters I use to hook up regular 3v bike lights, and USB outlets for my electric bike. There are 4 little notches for input and output wires.

There is no clip on the lid, you can tape it down, or glue it.

The converters have a nice blue LED so might look good in clear filament.

You can buy the converters here: http://www.ebay.co.uk/itm/222260678171?_trksid=p2057872.m2749.l2649&var=521096465066&ssPageName=STRK%3AMEBIDX%3AIT