1) Amount of electrical output 2) Amount of electricity 3) Bulb info 4) Bulb number 5) Bulb rating 6) Electric power 7) Electrical power 8) Info on a bulb 9) Power 10) Power rating 11) Power supply 
The amount of heat energy provided by the soldering iron. Physically larger components need higher wattages.
The electrical unit of power. A kilowatt is 1000 watts and electric customers are billed on how many kilowatts of power they have used. 
(waht´әj) the output or consumption of an electric device expressed in watts.