Run it to the cigi lighter socket .
J
I was going to use a separate battery to power all the lights
@landowner why not go the whole hog and buy a little 12v inverter for 240v 50hz output and put a whole string of Xmas LED lights in and have all permutations of "flashing/sequencing" available? Inverters are cheap on e-bay as are the XMAs LED lights.
I thought xmas lights were 12v anyway, with plug in adaptor
As long assits rated to take the current, it shud be ok.
That is of course if you know what the current is, leds are rated in lumens as far as I can tell so how many of those to a piece of wire ?