Do flat sreen TV's use significantly more power than Normal tube types?

In general, plasmas use the most electricity, and LED-backlit LCD TVs use the least. LCDs are often seen as more energy-efficient than CRTs, but at larger sizes they too use a lot of electricity, almost as much as comparably-sized plasmas in fact. A 52-inch LCD will use somewhere in the ballpark of 200 watts, whereas a 27 inch CRT might use 100 watts, and a 52-inch CRT rear-projection TV will use about 200-250.

Even the most power-hungry plasmas typically don't use more than 600 watts. Electricity is usually 8 to 9 cents per kilowatt-hour. Say you went from a CRT television using 200 watts to a LCD using 100 watts.

That's a difference of 100 watts. Assuming you watch your TV 8 hours a day every day, that's a difference of 24 kilowatt-hours per month, translating to a savings of about $2 a month on the electric bill. More.

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