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Asked by: Atmane Gonter
home and garden home appliancesHow much does LED lights cost to run?
Last Updated: 17th May, 2020
If you used a bulb for just two hours a day and paidthenational average of 11.5 cents per kilowatt hour, asingle12-watt LED will cost you about $1 peryear.Comparable CFLs that consume about 14 watts come to $1.17 peryearand about $5 a year for 60-watt incandescents in thatscenario.(See formula.)
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Just so, are LED lights expensive to run?
Comparing Costs: CFLs vs. LEDs
| Incandescent | LED | |
|---|---|---|
| Watts used | 60W | 10W |
| No. of bulbs needed for 25,000 hours of use | 21 | 1 |
| Total purchase price of bulbs over 23 years | $21 | $8 |
| Total cost of electricity used (25,000 hours at $0.12perkWh) | $180 | $30 |
Secondly, are LED lights harmful to the eyes? This is not the first time energy-saving bulbs havebeencriticized – fluorescent bulbs emit dangerousUVlight. Eco-friendly LED lights may damageyoureyes, according to new research.A study has discoveredthatexposure to LED lights can cause irreparable harmtothe retina of the human eye.
Moreover, how much does it cost to run lights?
A “normal” incandescent bulbcostsabout 0.75cents per hour, and LEDs or CFLs costonlyone-sixth of that – so leaving the lights on(eitherovernight or while you're at work for the day, say both areabout 8hours) costs you roughly 6 cents for a normallightand a bit over 1 cent for modern bulbs.
How do you calculate power consumption?
Steps
- Find the wattage on the appliance label. Mosthigh-powerappliances have an energy label on the back or base oftheappliance.
- Multiply wattage by hours used each day.
- Divide the result by 1,000.
- Multiply your answer by the number of daysyou'remeasuring.
- Multiply by the cost of electricity per kWh.