I would like to wire in a small charger next to this interior light inside my T3. The lights are wired to the leisure batteries so are "always on". Could anyone advise me on whether this is safe, and whether I would need to uprate the interior lighting fuse. And If possible, let me know where to actually wire it ? I don't understand why there are a pair of wires coming to, and leading from, the light.. sorry , auto electric relative numpty ! I have a crimper and loads of push connectors, and a multimeter

thanks in advance
Stefvan