LCD/LED display or TV screen electricity usage

What is electricity consumption of average/common LED/LCD display?

The display technology used, the manufacturer and build quality, the size of the screen, what the display is showing (static versus moving images), the brightness of the screen, and whether power-saving settings are activated all have a significant impact on how much power is consumed by computer and television displays.

To calculate the energy usage of a 22-inch LED-backlit LCD display utilizing 30 Watts for 5 hours per day at a cost of $0.10 per kWh, click calculate. If necessary, adjust the calculator fields to match your display by looking at the table below.

Number of screens:

items

Hours used per dayhelpFill in how many hours a day you use/would like to use the device. For example, if you use the device for 2.7 hours per day, then enter 2.7.:

Hours a day

Power use in Watts Kilowatts

LED LCD CRT Plasma other

Price (kWh):

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Cost per hour ():

Cost per day ():

Cost per month ():

Cost per year ():

Kilowatts per dayhelp Here you will see a value for how much energy (in watts, kilowatts or megawatts) the device will consume per day if it is used for the time you specify. The formula "Hours used per day" × "Power use" is used.:

Watts Kilowatts Megawatts

Hours Used Per Day: Indicate the average number of hours per day that the device is used. If the daily power usage is less than one hour, enter the number as a decimal (for instance, 30 minutes a day equals 0.5).

Power Use (Watts): Type in the watts that represent the device's typical power use.

Price (kWh): Enter the price per kilowatt hour you pay typically; our calculators use a default value of 0.10 (10 cents). Check your power bill for the precise cost.

When a product specifies LED, it is referring to the backlighting. LED & LCD displays employ the same TFT LCD (thin film transistor liquid crystal display) technology to display pictures on the screen. In comparison to LED-backlit LCD screens, older LCD monitors employed CCFL (cold cathode fluorescent) illumination, which is typically 20–30% less energy efficient.

Comparison of power consumption for LED, LCD, CRT, and plasma:

Size of the Screen	LED	LCD	CRT	Plasma
15 inches / 38.1 centimetres	15	18	65	---
17 inches / 43.18 centimetres	18	20	75	---
19 inches / 48.26 centimetres	20	22	80	---
20 inches / 50.8 centimetres	24	26	90	---
21 inches / 53.34 centimetres	26	30	100	---
22 inches / 55.88 centimetres	30	40	110	---
24 inches / 60.96 centimetres	40	50	120	---
30 inches / 76.2 centimetres	50	60	---	150
32 inches / 81.28 centimetres	55	70	---	160
37 inches / 93.98 centimetres	60	80	---	180
42 inches / 106.68 centimetres	80	120	---	220
50 inches / 127 centimetres	100	150	---	300

* Results assume screens are calibrated for energy-saving performance; results may vary greatly.

The build quality of the screen, energy-saving features that are turned on, and your usage habits all play a role in properly estimating how much energy is used by your TV or computer display. Using a specialized tool called a power meter or an electricity use monitor is the only way to precisely determine a model's energy consumption. Electricity usage may be precisely tracked by plugging this gadget into a power outlet and then plugging your device onto it. This product is affordable and will assist you in determining your exact electricity bills for each gadget if you are serious about accurately analyzing your energy consumption.

Since LED displays give the biggest power savings and are becoming more affordable, we generally advise using them. Select a display size that is comfortable for you, and make sure your display is correctly calibrated to save energy. Lower the brightness, turn on energy-saving features, and ensure sure the monitor enters sleep mode after five or ten minutes of inactivity. As less energy is required to illuminate the screen, several research studies also suggest that changing your system themes to a darker hue may help you save money on electricity. Remember that most displays still consume 0.1 to 3 watts of electricity even when they are off or in sleep mode. Unplugging the screen if you will be gone for a long time may also be helpful.