Did you know that Light Emitting Diodes, abbreviated as LEDs, are being increasingly used for different lighting applications? The reason for their becoming so popular is their energy efficiency. Actually, they have already proved to be a better alternative to incandescent and fluorescent lamp bulbs, which we have been using for a long time.
Do you know a LED lighting bulb can work up to about 50,000 hours. In fact, it's life depends under which conditions it works. Under ideal conditions, it should not be exposed to moisture and excessive cold or hot temperatures.
High quality LED lighting light bulbs are available in white, green, red, blue, white or amber colors. The color emitted by a diode is decided by the energy gap of the material used for making its p-n junction. The composition of a diode is a slice of N-type material, carrying a negative charge and another slice of P-type material, with a positive charge, having electrodes at either end.
The point where the two kinds of materials are joined forms a p-n junction. The energy gaps of different types of p and n materials are different and measured in terms of wavelengths, which results to having light in different colors.
When light is to be directed to a particular point, you can employ LED lights. As compared to traditional options of lighting, these lights prove much more fitted for this purpose.
Usual incandescent lamps are notoriously energy inefficient. Nearly about ninety percent of their energy consumption gets wasted due to the heat produced by them. On the other hand, LED lamps consume about 75% less energy compared to incandescent lamps, and produce just about 3 or 4 BTUs/ hour, while incandescent traditional lamps produce 85 BTUs of heat.
The energy consumption of LEDs is just about 2 to 10 watts. That is about one third to 1/30 of what is consumed by traditional incandescent lamps or CFLs. The lifespan of an LED bulb is about 50 times more than incandescent lamps and about 5 times more of fluorescent light tubes.
As per the estimates of the U.S. Department of Energy, extensive use of LED lighting during the coming twenty years can help saving nearly $265 billion, amount enough for making forty additional power plants, thus reducing the demand of power for lighting by about 33 %.
LED lighting lamps get turned on instantly, meaning they deliver their maximum brightness instantly on getting switched on. For this reason, they are particularly helpful in illuminating the instruments used in aircraft, automotive, flashlights and emergency lights.
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