Yes.
Yes. As far as in the US 220v and 240v is pretty much the same thing. People call it 220 but realistically you prob have 230-240v. Get a cheap voltage tester and check it out
Yes.
no
The device requires a NEMA 14-50 outlet, which is a 240-volt, 50-amp outlet commonly used for high-powered appliances like electric stoves or RVs.
Yes
Assuming the wiring to the outlet has 2 loads and one neutral, isolate one load from the outlet and use the neutral as the common. be sure to ground from the receptacle to your conduit or ground lead. You should also replace the corresponding breaker with a 120 volt single breaker.
The bulb will be about half as bright.
Yes
A device that operates on a 220 volt 20 amp plug requires a special type of electrical outlet called a NEMA 6-20 outlet.
A device that operates on a 240 volt 50 amp plug requires a NEMA 6-50 electrical outlet.
yes
To safely connect a 220-volt dryer to a 110-volt outlet, you cannot directly plug it in, as the voltage and amperage requirements are different. Instead, you should consult a licensed electrician to either install a dedicated 220-volt outlet or use a transformer that can convert the voltage appropriately. Attempting to use a 220-volt appliance with a 110-volt outlet can damage the appliance and pose a serious safety hazard.