LED Energy Efficiency
Here's how LED light bulbs compare to ordinary bulbs: A regular 40 Watt incandescent bulb burns through a lot more energy than it needs to produce the light you see. A large percentage of the energy that goes into a 40 Watt bulb is wasted as heat. LED light bulbs, on the other hand, generate very little heat as they glow, instead transferring most of their energy directly into light.
The latest LED light bulbs now produce about the same amount of light per watt as compact fluorescent bulbs (CFL). However, unlike incandescent bulbs and CFLs, which splash light in all directions, LED bulbs are directional. They drive their light in one direction, so that you have light exactly where you want it. This directional lighting equals savings in yet another fashion. LEDs don't waste light (energy) on areas you don't need illuminated, which is also why they're perfect task lights.
Prior to the introduction of LED light bulbs, if you wanted to use a low watt (less than 4 watts) bulb for ambient lighting, you had to settle for a hard-to-find, expensive, incandescent light or an unsightly florescent. Current LED bulbs are designed to fit standard bases, range from 0.85 to 7.3 watts, and are made for low light situations. In addition to low wattage, you get the bonus of long life and energy efficiency, which all adds up to a 90% savings over standard bulbs.
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