Nice job Paceman....if I may be sold bold to ask....could you please advise how you did it and with what ?
Cheers
Rob
no boldness required...

1m pvc pipe, with two coats each of british paints 'sprayeasy paint & prime' and clear acrylic... the black is only because i'm a bit OCD and i think it looks better...

strip of 5630 led's with a tail soldered on at each end of the strip and then an anderson powerpole connection on each tail.
the tails are fed through a rubber stopper at each end of the pipe and the pipe is covered with clear heatshrink.
similar setup with the reading light, only that there is a tail at one end and then covered with clear heatshrink. this pole is one of two short support poles for the large wall next to our bed in the camper. i took the crappy C-clips off them and replaced with U-clips... the reading light has a dimmer for it as well, so it isn't too bright...

the dimmers use a thinner wire, so i have to strip more back and fold it on itself three or four times to get a good crimp on the anderson powerpole.
all up, each annex light cost me about $10 to make, which is much cheaper than a bought one of the same length and i don't mind making them.
hope this answers your question, but happy to be more specific, if necessary...