To help illustrate this point let s take a look at the true cost of light bulbs.
Cost of incandescent light bulb vs led.
These light bulbs also require a lot more watts and electricity.
The electric cost would be just 21.
An average led light bulb that outputs the equivalent of the 60w incandescent fixture uses roughly 8 9 watts.
The 8 70 of the incandescent lamps.
The led equivalent of a 60 watt a19 bulb consumes only between 9 and 12 watts and provides about the same light output measured in lumens.
Ikea sells its own 60w equivalent led light bulbs for just 5 and home depot is reportedly running a promotion in may that will discount philips led light bulbs to as low as 2 50 per bulb.
Led viribright watts used.
Oh and one led would last the entire year.
At this rate it would cost 6 60 to operate the incandescent bulb for 1 000 hours.
In this style led bulb clusters of leds are covered by a lens which spreads the light over a wider area like standard incandescent bulbs.
To begin take a look at the following chart which breaks down the real costs associated with the three most common types of light bulbs over a seven year period leds cfls and incandescents.
If you were to light an incandescent bulb for 25 000 hours it would cost 169 compared to the 30 cost to light an led.
Cost of electricity 25 000 hours at 0 15 per kwh.
Led bulbs last longer than traditional incandescent bulbs.
It would cost 1 32 to operate the led bulb for the same amount of time.
Average cost per bulb.
Ikea sells its own 60w equivalent led light bulbs for just 5 and home depot is reportedly running a promotion in may that will discount philips led light bulbs to as low as 2 50 per bulb.
The true cost of light bulbs.
When most people need to replace their light bulbs cost is the biggest factor in their decision.
A 40 watt equivalent led bulb consumes only 6 to 8 5 watts.
Where once it was common to pay 50 or even 100 for an led light bulb they re now available for about 8 a bulb on amazon.
Total purchase price of bulbs over 20 years.
It would only take a 16 watt bulb to emit as much light as a 100 watt incandescent bulb and it would use only 140 kwh of energy over the year.
Bulbs needed for 25 000 hours.
The department of energy reports that a 60w incandescent bulb will last for approximately 1 000 hours.
Incandescent bulbs typically only last a mere 750 hours compared to the longer lasting led and cfl bulbs.