How much electricity does a 9 watt bulb use?

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Yearly power consumption = 9*24*365 + 10% power loss = 78840 + 7884 = 86724 Watts hour. Converting into units 86.7 units per year.

How much electricity does a 10 watt bulb use?

For example a 10 watt light bulb consumes power at a rate of 10 watts per hour, it does not mean that the light bulb consumed 10 units of electricity, it means it will consume power at a rate of 10 watts every hour.

How much does a 10 watt bulb cost per hour?

Comparison Between LED, CFL and Incandescent Light Bulbs:

LED Incandescent
Watts (equivalent 60 watts) 10 60
Cost per bulb \$2.50 \$1.25
Daily cost* \$0.005 \$0.03
Annual cost* \$1.83 \$10.95

How much electricity does a 7 watt LED bulb use?

Moreover, LED bulbs have a life span of 25000hrs which is 50 times that of incandescent bulbs. Enter the wattage, hours of usage and cost per kWh.

Power consumption of LED lamps.

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Lumens Typical LED Watts
400 – 500 6 – 7W
650 – 850 7 – 10W
1000 – 1400 12 – 13W
1450-1700+ 14 – 20W

How much power does a 10W LED use?

Due to the high capacitive loads required to stablise the current at very low dimming levels to avoid flicker PF is poor, generally approx 0.65 meaning that a 10W rated LED bulb will consume approximately 15.4W (or VA, apparent power) near full load.

What does 9W mean on a light bulb?

The meaning of 9W=75W is that the LED lightbulb consumes only 9W of electric power to produce the same light output (luminous flux) as would be produced by a 75W tungsten-filament incandescent lightbulb.

How much does it cost to run a light bulb for 1 hour?

For this infographic we are using an average cost of electricity per kWh of \$0.11, and since a 100-watt lightbulb uses 0.1kWhs worth of electricity per hour, weve concluded that to power that lightbulb for 8,760 hours (1 year) it would cost \$96.36.

How much does it cost to run a single light bulb?

Comparison Between LED, CFL and Incandescent Light Bulbs:

LED Incandescent
Cost per bulb \$2.50 \$1.25
Daily cost* \$0.005 \$0.03
Annual cost* \$1.83 \$10.95
Cost for 50k hours @ \$0.10 kWh \$50 \$300

How many watts consume a refrigerator?

You should keep the refrigerator 6-inch away from walls on all sides. This will help the warm air from the fridge to pump out in the atmosphere easily.

For a 250-litre refrigerator –

Energy Star Rating Monthly Power Consumption
5 33 kWh
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How much watts does a fridge use?

The average home refrigerator uses 350-780 watts. Refrigerator power usage depends on different factors, such as what kind of fridge you own, its size and age, the kitchen’s ambient temperature, the type of refrigerator, and where you place it.

How much electricity does a TV use?

Most TV’s use about 80 to 400 watts, depending on the size and technology. Using a sample cost of 15¢ per kilowatt-hour and five hours of viewing a day, that’s \$1.83 to \$9.13/mo.

How much does it cost to run one light bulb for 24 hours?

Leaving the bulb on the whole day will therefore cost you: 0.06 (60 watts / 1000) kilowatts x 24 hours x 12 cents = approximately 20 cents in one day.

Do LED lights use a lot of electricity?

In general, LED Lights use less electricity and last longer than incandescent or CFL bulbs. … LED lights also use very little electricity in comparison to traditional incandescent bulbs.

What uses the most electricity in a home?

The Top 5 Biggest Users of Electricity in Your Home

1. Air Conditioning & Heating. Your HVAC system uses the most energy of any single appliance or system at 46 percent of the average U.S. home’s energy consumption. …
2. Water Heating. …
3. Appliances. …
4. Lighting. …
5. Television and Media Equipment.

How much electricity does a light bulb consume?

Light Bulbs

A LED light bulb uses just seven to ten watts while a fluorescent light bulb consumes 16-20 watts, an incandescent light bulb will use 60 watts typically and cost about 0.6 cents an hour to run, according to the energy use chart.

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How do you calculate the energy consumption of a light bulb?

To find the total wattage of a fixture, add the wattage of each light bulb together.

1. fixture watts = bulb watts × bulb quantity.
2. kWh = Power(W) × Time(hrs) ÷ 1,000.
3. monthly kWh = kWh per day × 30.
4. price = kWh × cost per kWh.