how long to recoup the cost of led bulbs
For example, a closet light may only get switched on for a couple of minutes every day. Even with today's high electricity rates you can power a light for two minutes a day at a cost of about 15 cents per year. It might take 50 years to recoup the cost of replacing such a bulb with an LED. On the other hand, a business that is open 9 hours per day and 260 days a year might have several 60 watt bulbs burning during this entire time. The cost to power a single 60 watt bulb for this business would be about $30/year vs. $4.40/year for an 8.5 watt LED.