If you were to install 512 1W LED Light Bulbs and it would cost you ONLY $147.49 per year to operate 24 hours per day 7 days per week.
This is how it works: Take 1.20 watt per LED Bulb x 512 bulbs = 614.4 watt total per hour x 8 hours a day = 4,915.2 watts per 8 hour day x 365 days per year = 1,794,040 watts use per year. Now divide by per kilowatt 1000/ kilowatt the electric company bills you at = 1794.04 kilowatts .08221cents per kilowatt hour that Detroit Edison charges = $147.49 per year. What does it cost you now? Determine that and see what your return time would be to invest in a quality LED light bulb. You will be pleasantly surprised at what you could be saving, or horrified to know what you are paying out.
Replace the numbers with your own and see what your cost reduction could be if it were possible to replace all lighting in your home with LED bulbs. Even if you replace only some of your traditional lighting with LED Light bulbs, you can still reduce power consumption and alleviate the burden placed on our natural resources by converting to LED lighting for indoor task oriented areas and exterior lighting.