Like most things, it depends. LEDs have certainly brought the costs down.htxag09 said:
Honest question.....What's the payback on something like this, like 10 years?
With 6.5W LEDs, and $.14/kwh, it's about $.26 a year to operate per hour per day. Our vanity has 10 lamps, so $2.60 a year to operate per hour per day.
If you leave on for an extra hour a day, it'll take 14 years. If you leave on for 5 hours extra per day, it'll take less than 3 years.
In the days of incandescents, the payback for 1 hour per day and ten lamps would take a little over a year. 5 hours per day would take 3 months.