Why are LED lights considered so energy efficient?
Any bulb that is very bright (has a high number of lumens) and consumes very little energy (has a low wattage) is considered energy efficient. An LED bulb will consistently produce brighter light (more lumens) using less energy (low watts). This means you can get the same amount of light for as much as 80% less wattage. For example, if you need a bulb that gives off 800 lumens of light, an incandescent bulb would use 60 watts of power to shine that much light. Meanwhile, an LED bulb would only use 15 watts of power to give you the same amount of brightness. In that way, you save money (because the bulbs use less energy and therefore last longer) without sacrificing the quality of your light. The typical lifetime of LED bulbs are quoted to be 25,000 to 100,000 hours, compared to 1,000 hours for incandescent bulbs and 10,000 for CFL bulbs.