It should be ok
temporary it blows or KABOOOMM....
When equipment is run at a lower voltage than it is designed for, it does not operate correctly. A light will glow dimly or not at all, a heater produces much less heat. Electronic equipment may not function at all.
A bright flash and a dud bulb, possibly a blown fuse instead.
zzzzzzzzzzzAAAAAAAAAAAAAAAPPPPPPPPPP !!!!!
Yes, a 110 volt device can be plugged into a 125 volt receptacle. The voltage rating on the receptacle is only there as the highest voltage supply that the manufacturer recommends their equipment be connected to.
No, the source voltage can not change to a lower voltage without using equipment to do so.
If the supply voltage is Vs and the equipment voltage is Va, then the equipment will work if Va = Vs (equation). But if Vs / Va = 220 / 120 (equation) the equipment will fail.
First, someone would have changed the plug before that would be possible. 240 Volt receptacles do not accept 120 Volt plugs. Second, IF someone changed the plug on the compressor, then plugged it in using both legs of the 240 Volt circuit, the compressor motor would self destruct instantly; internal wiring would burn and you would smell the burning insulation.
It might explode, it might blow the fuse, but it will not work properly. But laptop power supplies seem to work from 100 v to 240 v without any switching.
It'll only deliver 1/4 of the power.
If the ballast of the HPS fixture has a 120 volt tap then, yes it can be plugged into a 120 volt receptacle.
Not much of anything. The 220 volt appliance needs just that ... 220 volts in order to run. If it runs at all, it certainly would not be running at anywhere near peak efficiency.