Watts Up Meter Demonstration

Wow thanks a Lot, I was resaerching the same thing, Actually I wanted to make my website to have a black background, now im having second thoughts. It would be very nice to have a test for different kinds of monitors, LED LCD, CRT and Plasma

Greettings from Peru

The difference is miniscule....unless you take into account your optometrist bill from the increased eye strain cause by reading a black screen with white letters.

no it doesnt even work with old screens.

Not in an additive color system.

Tossing a working CRT to save line power is a waste of the power it took to build, transport and dispose of the CRT.
It only makes sense in a power restricted environment like a remote researh station, boat and the like - not a typical office or home.

'and nobody uses CRTs anymore'

Yes we do.
I won't toss an $1800 monitor -just- because it's out of fashion, or uses more power...
And the scanning raygun in a CRT scans the screen full time with multiple colors it doesn't use more or less power based om what is displayed.

I obviously exaggerated a little bit, but in reality CRT isn't widely used anymore. Not that it's out of fashion, it's simply just outdated technology.

Wow! A difference of 1W. The power supply in the computer is drawing a significant more amount of power. I guess you could argue that if you turn the sound down on your speakers you'll be using less power and therefore "save the planet". I probably already wasted more power than that just by downloading this video and then typing this response back. Hehehe.

what about greenle? is that better?

My LCD TV seems to suck 143W with blackle and 148W with google. I'm also using a black theme for YouTube (looks much nicer to me).