It depends on the supply voltage watts = current in amps times the supply voltage
On a 120 volt supply, up to 360 watts. On a 240 volt supply, up to 720 watts.
1000
mA or current is only an element of Watts. Watts= voltage x current (amps). So multiply 0.650 (650mA) by the supply voltage to get the wattage. e.g. if its a 12 volt supply you get 12 x 0.650 = 7.8 watts
On a 120 v supply 87 watts is 87/120 amps, while on a 240 v supply 87 watts is 87/240 amps. <<>> There are zero amps in 87 watts. Watts are the product of amps times volts. Without a voltage value for the following equation I = W/E, Amps = Watts/Volts, an answer can not be given.
Your welder needs 20A at 120V for full output. This is 2400W, but you should always add a little extra margin, so I would recommend a 3600W generator.
The Whirlpool MT4155SPQ 1.5 CuFt Countertop Microwave Oven supplies 1200 watts of power.
On a 120 v supply 320 watts is 320/120 amps, or 2.667 amps. On a 240 v supply the current is 320/240 amps, or 1.333 amps.
None, the watts come form the electricity supply and the lamp uses them at a rate of 100 an hour when it is turned on.
1000 W means one thousand watts. That is normally the heating effect that it produces, so the power taken from the supply could be 1500 watts.
Watts is found by multiplying the volts by the amps. Normally a supply is provided at a fixed voltage, and the amount of current that is drawn depends on how many watts the equpiment requires.
15 for a good welder.
12