Oxymoron: Power Supply.

Power: The term used for the product of voltage and current. It is measured in watts.

Supply: provide or furnish with; "We provided the room with an electrical heater"

A power supply doesn't provide one watt, volt or amp. it's a transformer. it takes houshould current and converts it to 12 volts at x amps.

Power supply my ass. I've got 50 of the things laying about. and 500 different things they'd be hooked to if they supplied power. I wonder if 300 watts is enough to power the well? or maybe I'll have to combine a few to get enough wattage.