Scared of the dark!

So far I have only wired one light into the van and it is so bright i think ill stick with one.
The light had been taken out of an ex AA van and was purchased on Eb*y.
It is 350mm long, 500mm deep and 32mm wide.
It runs off the main 12 volt battery and was easy to install, with just 2 wires from the unit as it has a built in switch on the unit. Due to the vans construction i was able to run all the wiring through the body of the van and wired it to the rear door lights by bypassing the switch to only allow power when the door is open.

Update: I recently replaced all the interior courtesy lights with Bright White LED's, not only do they drain very little power they are so much brighter than the original bulbs. As I do not yet have a second battery minimizing power drain is very important.