Is there any way to get useable electricity out of a lightbulb socket?
Assuming it is mains electricity, it is the same stuff that goes to sockets (if there were any). The wiring will be probably not be ‘strong’ enough for anything apart from lighting and, if it is installed properly, there will be a fuse fitted, rated at 3 Amps or 5 Amps (in the UK). If you try to power anything over about 700 watts (assuming UK 230V ac supply) it is likely to blow the fuse. That’s what it is supposed to do to protect you. If the fuse didn’t blow, the wiring would get hot and could start a fire or melt its insulation leaving dangerous live wires exposed. So, you might be able to fit an adaptor and run a small appliance like a radio or a mobile phone charger but you will not be able to safely power a hair-drier or heater or electric kettle. I don’t know if the adaptors are still available (in the UK, one bayonet plug with two bayonet sockets – You then power your second appliance by connecting its power lead via a second bayonet plug) They were a pretty dodgy idea and I a
