i did this in the Safari
i used a 5m strip of bright white, LED strip
i cut to lengths to fit inside on the metal reflector strip
4 lengths made lots of light
disconnect the ballast
use the 12v from the switch to power the LED strips
strips can be cut to any length that is multiples of '3 leds'
evry set of '3' is a series 12v set
so strips can be 3,6,9,12,15 etc
strip is marked where you can cut
clean the reflector with alcohol before placing the self sticking strips
DO NOT use double sided tape, this insulates the strip and causes over heating
the reflector acts as the heat sink, attach directly to the reflector
solder the wires on the ends of the strips, daisy chaining the + to + and - to - connections
