Always had problems with the rear lights on the Luego, the cheapy lights that were on there were really poor quality so I've treated myself to a Caterham set (very nice to they are). Problem is they don't match up to my existing (Premier Looms) loom, I can't find the wiring diagram and the lights don't come with instructions.
The light have 4 wires coming out of them

Red
Black
Green
Green/Purple

Any ideas which wire does what

test with a battery.

Green is Indicator
Green Purple Is Brake Light
Black is Earth
Red is Sidelight

Cheers Tul

Really chuffed with these
Much better quality than what I had before and really easy to fit (old on the left, new on the right)