how do you get enough power (safely) into the bathroom?
... I can't easily get a power cable under the door. So that leaves me 'adapting something from the two 'down lighters'. But I am pretty sure that does not meet regs on safety!
"Enough"? Is there not an outlet for a hair dryer or an electric razor (if desired)? An enlarger bulb and a safelight will not pull as much power as either appliance, so I can't imagine there being a problem.