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The Advantages And Disadvantages Of LED Light Bulbs

Since the compact florescent light bulb has started to quickly replace the aging incandescent light bulb lately, a brand new kind of bulb is emerging that will replace them both. The light emitting diode (LED) bulb has benefits that make it a superior technology.

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

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

The two excellent benefits of LED light bulbs are their long life and energy efficiency. They only utilize almost one tenth as much electrical energy as normal bulbs and thus offer huge financial savings in energy expenses as well as a decreased carbon footprint. This makes them both cost efficient and eco friendly.

Their solid state construction and low heat emissions give them a much longer lifespan. LED light bulbs drastically outlive even compact florescent bulbs and could easily last for a decade or much longer in regular use. This not just 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 almost immediately and are actually mercury free, LEDs solve 2 major problems that compact fluorescent bulbs have (mercury content as well as lag time in reaching full brightness).

LED light bulbs are built to emit a really directional light so the light could be aimed exactly where it's needed. Also, their light is nearer to the color of daylight, which studies indicate helps people stay alert.

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

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

One disadvantage with LEDs that has not been solved yet is cost. While their power savings and really long life mean LEDs are cost-effective and save money in the long run, they're not likely to attain mass consumer acceptance until their prices come more consistent with other types of bulbs. Although their costs are coming down, LED light bulbs are still relatively costly.

As soon as 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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