Basic Guidelines While Purchasing LED light Bulbs – Part 1

One has seen and experience many advantages over the traditional incandescent and fluorescent bulbs, LED lights transforms all forms of lighting. Before buying a LED Light, the buyer has to know about its terminology, technical aspects and consider the factors as compared to the purchase of traditional lights.

Most of us now know that, LED stands for light-emitting diode. LEDs are actually semiconductors (just like computer chips) that produce light more efficiently than traditional light sources. When electricity is passed through them, they emit energy in the form of light. When chemicals are injected in these semiconductors they determine their light color. A light gets generated when LEDs convert majority of energy passed through them, as against the incandescent bulbs that produce light as a by-product after being heated. This is the most important reason that, LEDs are more efficient than traditional household filament light bulbs.

LEDs are being widely and commonly used for displays and light indicators for ages. Only recently, though, have engineers figured out how to make and mass-produce bright, white LEDs that can be used for general-purpose lighting. The high brightness and point-source characteristics of LEDs have made them the first choice for traffic lights and car tail lights, where visibility and dependability are essential.

Basic guidelines while purchasing LED light bulbs

1. Although the initial cost per bulb is, the total lifespan cost of an LED light bulb is actually lower than that of equivalent incandescent or a CFL bulb. Taking into consideration energy costs as well as time and resources required to replace incandescent or CFL bulbs, an LED bulb would last more than 50,000 hours at a much lower lifetime cost.

2. LEDs are diverse, and many types are useless for general lighting applications. The finest LED chips emit light with a Color Rendering Index (CRI) of 85%. The CRI, by the way, is a quantitative measure of the ability of a light source to reproduce the colors of various objects in comparison with an ideal or natural light source. LED light bulbs that use top-quality LEDs will last much longer than the novelty bulbs.

3. Manufacturers now produce individual LED chips that are as bright as a 100-watt incandescent bulb, LEDs installed in fixtures and bulbs must be ventilated properly, and the better the chip, the more difficult it is to properly cool. There are some LED light bulbs in the market that do not take this into consideration and either use cheap chips so they don't have to ventilate them, or do not ventilate their chips properly, thereby reducing its lifespan significantly. While the typical LED light bulb is barely warm to the touch, if the chip is not properly ventilated, it can fail prematurely.

4. LED light bulbs do not burn out; rather, they gradually fade out. If it is said that an LED bulb normally lasts for 50,000 hours, they last for 50-75 times longer than a comparable incandescent and 6-8 times longer than a CFL.

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