It's about 15 ft sq with a car port adjacent but at a lower level so lighting at night is important. I know I'm overthinking it, that's what the thread's called! BUT...sheds and garages aren't exempt the regs. I know everyone just lumps lights and power on the same RCD but is that right? It's a hyperthetical question, really, as I intend to install the Emergency Lighting, but how would you satisfy the regs with regards to danger? Lights and power out together??? Only a thought...
You are asked to minimise inconvenience not to eliminate inconvenience
If the lights and power are out in the shed,then they best not use it if it is unsafe to do so
They could wait till its light or get them to buy a torch
Better still, if it is of concern, go with tels suggestion and have them pay for a EM fitting