Watts are a measurement of electricity. Volts times Amps =watts So if you are using 12volt supply and pulling 3 amps you are expending 36Watts So anything that uses electricity is expending watts....
There is nothing stopping you, but you risk blowing out the speaker
Yes. The fixture wattage is a maximum safe limit.
50. Is this a trick question?LOL
If the fitting says 150w that is the most powerful bulb you can use without it overheating. 250w is too much.
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