The amount of watts that a TV uses depends on the size of the TV.
Smaller 24 inch TV's may use around 35 to 40 Watts while a larger TV such as a 42 " to 52 " TV could use as much as 100 watts to 150 watts.
Old CRT TVs were pretty power hungry and even for the smallest CRT TV it could use as much as 100 watts while a larger CRT TV could use as much as 200 to 250 watts of electricity when powered on.
Modern TVs use, on average, 58.6 watts when in On mode and 1.3 watts in standby mode.
The power consumption of modern TVs ranges from 10W to 117W (0.5W to 3W on standby).
On average, TVs consume 106.9 kWh of electricity per year, costing $16.04 annually to run in the US.
- 32” LED: 30 – 55 watts, but generally around 40 watts, - 32” OLED: around 55 - 60 watts, - 32” LCD: 50 – 85 watts, but on average around 65-70 watts.
For example, old 32” CRT TVs required up to 150-200 watts (even more if the screen brightness is increased) with an average consumption of around 120 watts.
Most LED TV's has rated power between 60 watt to 150 watt.
Generally speaking larger the screen size higher is the rated power.
A 100 watt TV running for 12 hours everyday will consume 1200 watt hours = 1.2 kWh (units) of electricity in a day and 36 kWh of electricity in the entire month.