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The wattage varies on every television and also varies with your settings like brightness and even volume because it takes more power to play louder. The power usage is listed in the user manual of the tv, if you do not have a manual you can get the information from the manufacturers website just make sure you have the model number.

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14y ago
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14y ago

plasma tv consumes roughly 500 watts but for your tv you have to check the specifications

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11y ago

Typically, televisions in the 40 inch range will draw in the region of 100W while in use. There are wide variations with some rather less than 100W and others that use significantly more.

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Q: How many watts does a 40 inch LCD TV use when it is on?
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