Sony Bravia KDL-46W4100 LDC HDTV Review - Power Consumption
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By Alfredo Padilla
Published on September 08, 2008
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Power Consumption (8.26)
We measured the Sony Bravia KDL-46W4100's power consumption with a blank white screen and a backlight level of 200 cd/m2 (candelas per meter squared), which is a good brightness level for watching in both dark and lit conditions. At this backlight level the Sony Bravia KDL-46W4100's used an average of 156.3 Watts. If you were to watch TV for an average of five hours a day the total power cost for the Sony Bravia KDL-46W4100 would be $34.79 per year. This is just slightly above average for a television. You can see from the table below what your annual cost would be if you turned the backlight level of the TV down to minimum or up to maximum. You can see that turning up your backlight does have a significant impact on power consumption, as we've seen from other LCD televisions.
| Setting |
Average Watts
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Cost Per Year
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Backlight 0
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124.8 |
$24.44 |
Backlight 3 (200 cd/m2)
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177.8 |
$34.79 |
Backlight 10
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286.3 |
$55.99 |
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