Vizio SV470XVT LCD HDTV Review - Power Consumption
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By Alfredo Padilla
Published on October 09, 2008
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Power Consumption (8.0) 
The Vizio SV470XVT did reasonably well in our test of power consumption. To do this test we set the HDTVs backlight to a level that produces 200 cd/m2, a level that is reasonable for viewing in both dark and daylight situations. For the Vizio SV470XVT this was achieved by setting the backlight to 75. We then measure how many Watts the HDTV uses, taking several measurments over time. As you can see below the Vizio SV470XVT drew 203.67 Watts, which works out to an annual cost of $39.85 with typical usage. If you prefer your TV brighter and turn the backlight up to maximum you will spend significantly more, as you can see below. We should note that our calibrated settings are oriented to a TV with the backlight set at maximum so if you use our settings you will pay the higher price indicated below.
| Setting |
Average Watts |
Cost Per Year |
| Backlight 75 |
203.67 |
$39.85 |
Backlight 100
|
262.33 |
$51.30 |
Backlight 0
|
89.27 |
$17.51 |
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