The true savings from LEDs are found not only in the amount of money saved on electricity, but also money saved on labor and the cost of replacement over time. Labor and replacement cost is substantial when you are looking at a large building with many lights. If you use LEDs, maintenance costs will be much less than if you used traditional incandescent bulbs. The other major variable in savings is the amount of power used compared to the power used for an incandescent bulb. LEDs use only 10-20% of the electricity used by incandescent bulbs. As you can see, LEDs save much more money and energy in the long run