The Advantages And Disadvantages Of LED Light Bulbs

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

Whereas the incandescent bulb makes light within 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 because it makes use of solid matter, a semiconductor, to produce light.

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

The two great advantages of LED light bulbs are their really long life and energy efficiency. They only utilize around one tenth as much electricity as traditional bulbs and therefore offer huge savings in energy expenses as well as a decreased carbon footprint. This actually makes them both cost effective and environmentally friendly.

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

Since they attain their full brightness nearly immediately and are in fact mercury free, LEDs solve two main problems that compact fluorescent bulbs have (mercury content and lag time in reaching full brightness).

LED light bulbs are meant to emit a really directional light so the light may be aimed precisely where it is needed. Additionally, their light is closer to the color of daylight, which studies indicate helps people keep alert.

Until recent changes in the technology, the construction of the LED induced much of the light to be trapped inside. This and the bluish light they usually emitted caused a dimmer light that made LEDs unattractive for home use.

LEDs are now a lot brighter though and may emit the exact same soft, white light regular bulbs do.

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

Once their costs come down more, LEDs are more likely to become the standard and dominate lighting unless a greater technology appears.

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