Would do mate, but it means fiddling about with a load of stuff, and my plants being without light for an hour, as the ballast and lamp is about 200 degrees lol.

Here's a pic of my ballast.

basically, it goes (from left to right)

(from plug)
Earth ---- Screwed to light
Live ----- F
Neut---- N
(to light)
Live ----- LR
Neut ----- LF

Then, connected to the light, didnt take any effort at all, as it had 2 wires already, one was live and one was neutral so it was just a case of matching them up