View Full Version : Power Consumption?


dylanemcgregor
08-02-07, 06:47 PM
I'm trying to reduce my energy usage at home, so when I buy my next TV one of the big things I want to compare is how much energy it uses. I know LCD is pretty much the most efficient technology right now, but there seems to be big differences between what different models use, even screens that are the same size.

Is there a good resource that you can look at that will rank TVs by size and then electricity used? Something that would tell me the most efficient 37" TV? I'm having trouble finding anything on this that is up to date.

Thanks,
Dylan

mark_1080p
08-03-07, 11:48 AM
I'm trying to reduce my energy usage at home, so when I buy my next TV one of the big things I want to compare is how much energy it uses. I know LCD is pretty much the most efficient technology right now, but there seems to be big differences between what different models use, even screens that are the same size.

Is there a good resource that you can look at that will rank TVs by size and then electricity used? Something that would tell me the most efficient 37" TV? I'm having trouble finding anything on this that is up to date.

Thanks,
DylanProblem is that people tend to adjust the backlighting on LCD to suit their needs/preferences. My LCD's are set on low backlight settings, so that the Sammy 4661 is only using about 80 watts or so. The rated power usage is far higher than that, perhaps as much as triple, not sure.

So if you use the backlight at low setting, and you choose a TV with adjustable backlight (essential so you maintain contrast if you like a dimmer setup), you can do very well with LCD, better than Plasma.

Raitzi
08-03-07, 11:57 AM
Cnet compared power consumption of 54 HDTVs.
http://reviews.cnet.com/4520-6475_7-6400401-1.html

Nmlobo
08-03-07, 06:18 PM
Cnet compared power consumption of 54 HDTVs.
http://reviews.cnet.com/4520-6475_7-6400401-1.htmlIt appears they only reported on "out of the box" settings. I doubt many leave their sets at these high levels. "default, out-of-the-box picture settings are extremely bright, so our power on numbers generally represent the maximum power consumption of any TV over an hour of viewing"

dylanemcgregor
08-04-07, 06:23 AM
Thanks. I'll make sure any set I get allows you to manually adjust the backlight.

Another related question; are there led-backlit TV's out yet? A google search brings up a number of blog posts from a year ago or more mentioning that Samsung was bringing a 40" led display to market in a month that had led-backlighting and was supposed to cut total power used by about 50%. Can't seem to find any mention of this display since then, and none of the blogs I read mentioned a model number.

So are there led-backlit displays out right now, and is the energy savings as dramatic as Samsung claimed?