How efficient are the led light bulbs compared to normal fluorescent ones?
LEDs present many advantages over traditional light sources including lower energy consumption, longer lifetime, improved robustness, smaller size and faster switching. However, they are relatively expensive and require more precise current and heat management than traditional light sources. Applications of LEDs are diverse. They are used as low-energy replacements for traditional light sources in well-established applications such as indicators and automotive lighting. The compact size of LEDs has allowed new text and video displays and sensors to be developed, while their high switching rates are useful in communications technology. Sources: http://en.wikipedia.
Led light bulbs vary a great deal in efficiency. All of them are superior to traditional incandescent bulbs. Some led bulbs are every bit as efficient as a fluorescent light. Others, however, are barely better than a traditional bulb and far inferior to a fluorescent. You will have to check the information on each individual led bulb to tell if it is comparable to a fluorescent or just barely better than an incandescent bulb. Sources: http://en.wikipedia.
Small LED flashlight bulbs will extend battery life 10 to 15 times longer than with incandescent bulbs. Also, because these bulbs last for years, energy is saved in maintenance and replacement costs. For example, many cities in the US are replacing their incandescent traffic lights with LED arrays because the electricity costs can be reduced by 80% or more. Aside from being more efficient, here are other benefits of choosing LED over old fluorescent bulbs: Long-lasting – LED bulbs last up to 10 times as long as compact fluorescents, and far longer than typical incandescents. Durable – since LEDs do not have a filament, they are not damaged under circumstances when a regular incandescent bulb would be broken. Because they are solid, LED bulbs hold up well to jarring and bumping. Cool – these bulbs do not cause heat build-up; LEDs produce 3.4 btu’s/hour, compared to 85 for incandescent bulbs. Mercury-free – no mercury is used in the manufacturing of LEDs. Cost-effective – although LEDs a
