It might be as little as 1/3amp at 36 watt for a standard household outlet, similar to the wattage of a popular Best Buy 32 inch model. The TV would be three times more powerful at 12 volts.
How much power does a 55 inch TV use?
77 watts
How much power does a 32 inch TV use?
32 inch TVs use 28 watts of electricity, on average, when in On mode and 0.7 watts in standby mode. The most common amount of watts used by a 32 inch TV is 26 watts while on, with 0.5 watts being used in standby mode.
What is the voltage of TV backlight?
Most LCD backlight drivers run off a 12-V-dc input, although applications may range from 5 to 48 V dc.
How do I check the backlight voltage on my LED TV?