A typical desktop computer uses about 80 to 120 watts of electricity. One of the biggest power consumers in a desktop computer is the monitor. A typical 17-inch CRT monitor uses about 120 watts of electricity, while a typical 17-inch LCD uses only about 30 watts. So, if you have a desktop computer with a CRT monitor, you’re using about 150 watts of electricity. If you have a desktop computer with an LCD monitor, you’re using about 110 watts of electricity. If you have a laptop with an LCD screen, you’re using about 35 watts of electricity.
Now, let’s compare that to some other common household appliances. A typical incandescent light bulb uses about 40 watts of electricity. So, if you have a desktop computer with a CRT monitor and two incandescent light bulbs, you’re using about 190 watts of electricity. If you have a desktop computer with an LCD monitor and two incandescent light bulbs, you’re using about 150 watts of electricity. If you have a laptop with an LCD screen and two incandescent light bulbs, you’re using about 75 watts of electricity.
As you can see, the monitor is one of the biggest power consumers in a desktop computer. If you’re looking to save on your electricity bill, you may want to consider switching to an LCD monitor.