I want to install a wall mounted toothbrush charger alongside a washbasin in a bedroom. Depending on what turns out to be the easiest option for routing the cable I intend to either wire this into the lighting circuit, which is protected in the CU by a 6A circuit breaker or take a spur off the ring main to a switched FCU with a 3A fuse then to the charger. My question is if I wire this into the lighting circuit do I need to install an isolating switch? Preferably I wud like not to have to do that, just more work.