60 watts. The ballast also uses this same amount
300 watts is the correct answer
Use 100 watts
Can I use 50 watts light bulb for weed plant
6 watt bulb for mini lamp
0.04 kilowatts one kilowatt is 1000 watts
the bulb is usually 30 or 40 watts
Normally the watts is a measure of how many watts of electicity a bulb uses, so a 60 watt bulb uses 60 watts. The brightness is measured in lumens, so a 60-watt incandescent blub might produce 600 lumens while a high-efficiency fluorescent blub might produce 3000 lumens.
The bulb uses 5 watts of power.
A Kilowatt hour is 1000 watts per hour. A 50 watt bulb will use just 50 watts per hour. Therefore over 12 hours the 50 watt bulb will use 50*12 watts = 600 watts or 0.6 of a kilowatt hour.
You just have to divide the watts by the voltage to find the amps. For example 60 watts on a 120 v system would take ½ amp.
Those numbers describe the power used by the two bulbs, in other words how many joules of electrical energy they use per second. The 100 watt bulb uses 40 watts more.
Watts = Amps x Volts. Milliamps to amps move the decimal place three places to the left.