televisions

Sony Bravia KDL-46BX420 LCD HDTV Review

46 in.

A decent budget buy that crams more performance in its 46-inch screen than many higher-priced models.

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Power Consumption

Power Consumption Summary
{{article.attachments['Sony-KDL-46BX420-vanity.jpg']}} • CCFL backlighting means higher power draw • Estimated annual operating cost at $22.90 under ideal backlight settings
{{article.attachments['tvi-prev.jpg']}} Multimedia & Internet Page 12 of 18 Vs. LN46D550 {{article.attachments['tvi-next.jpg']}}

Power Consumption*(8.86)*


As stated in the section summary, the CCFL backlighting of the Sony KDL-46BX420 is less efficient than the newer LED edge/backlighting, so that means a higher power draw. In the end, we're not talking about a large gross cost of operation, but it's still something that's good to be aware of. By keeping the backlight setting at 5 (which puts the brightness at 200 cd/m2), you can expect to pay somewhere around $22.90 a year under normal use. To see how it functions under other settings, we've included a nifty chart that tracks all the power consumption data we collected. (More on how we test Power Consumption.)

Setting Average Watts Cost per Year
Backlight: Max 173 $33.78
Backlight: 5 (recommended) 127 $22.90
Backlight: Min 80 $15.62

As you can see from the graph below, this is a fairly standard power draw among LCD TVs.

Power Consumption
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Our editors review and recommend products to help you buy the stuff you need. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. Our picks and opinions are independent from any business incentives.

Sections

  1. Introduction
  2. Tour & Design
  3. Blacks & Whites
  4. Color Performance
  5. Motion
  6. Viewing Effects
  7. Calibration
  8. Connectivity
  9. Audio & Menus
  10. Multimedia & Internet
  11. Power Consumption
  12. Vs. Samsung LN46D550
  13. Vs. Panasonic TC-L42E30
  14. Vs. LG 47LD4500
  15. Conclusion
  16. Series Comparison
Our editors review and recommend products to help you buy the stuff you need. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. Our picks and opinions are independent from any business incentives.
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Our editors review and recommend products to help you buy the stuff you need. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. Our picks and opinions are independent from any business incentives.
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