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

Anonymous

∙ 15y ago

Updated: 10/3/2023

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.

Wiki User

∙ 15y ago

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