The Workings And Benefits Of LED Light Bulbs

Since the compact florescent light bulb has started to quickly replace the aging incandescent light bulb in recent years, a different kind of bulb is emerging that may replace them both. The light emitting diode (LED) bulb has features that make it a superior technology.

While the incandescent bulb creates light in a vacuum and the compact florescent bulb does so inside a tube, the LED is referred to as solid-state lighting. It is solid state since it makes use of solid matter, a semiconductor, to produce light.

The semiconductor is made with both a positively and negatively charged component. The positive layer has small openings for the free electrons coming from the negative component to cross through. When an electric charge is applied to the semiconductor, a circulation of excited electrons moving through the holes emits a light.

The two excellent advantages of LED light bulbs are their long life and energy efficiency. They just use around one tenth as much electricity as normal bulbs and therefore offer huge financial savings in energy costs and a reduced carbon footprint. This actually makes them both cost effective and eco friendly.

Their solid state structure and low heat emissions give them a longer lifespan. LED light bulbs greatly outlast even compact florescent bulbs and could easily last for a decade or longer in regular use. This not only saves on the cost of the bulb, but it additionally saves time and replacement costs. Better suited to survive rough handling and outdoor conditions, a LED light bulb could be relied on to work when needed most.

Since they reach their full brightness almost instantly and are in fact mercury free, LEDs solve 2 main problems that compact fluorescent bulbs have (mercury content as well as lag time in reaching full brightness).

LED light bulbs are designed to emit an extremely directional light so the light can be aimed precisely where it is required. Additionally, their light is closer to the colour of daylight, which studies indicate helps people stay alert.

Till recent changes in the technology, the structure of the LED induced much of the light to be trapped inside. This in addition to the bluish light they usually emitted caused a dimmer light that made LEDs unpleasant for home use.

LEDs are now much brighter though and could emit the same soft, white light regular bulbs do.

One downside with LEDs that has not been corrected yet is cost. While their power savings and very long life mean LEDs are cost-effective and save money in the long run, they're unlikely to achieve mass consumer acceptance until their prices come more in line with other forms of bulbs. Although their costs are coming down, LED light bulbs are still comparatively expensive.

As soon as their costs come down more, LEDs are likely to become the standard and dominate lighting until a better technology appears.

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