Its nice to have lighting whenever you want--- think of it like ultra dome lighting.
I ended up going with 6 of these:
http://www.amazon.com/LEDwholesalers...lesalers+ar111
The setup gives me 50 lumens per square foot inside the truck so that i can work on the bikes while driving from track to track. my only concern is the narrow band of the light--- but it should be a great upgrade from what i had in there now.
I will also have a work light that i can plug in the inverter if necessary.
-E