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The Advantages And Disadvantages Of LED Light Bulbs

Since the compact florescent light bulb has began to rapidly replace the aging incandescent light bulb lately, a different sort of bulb is emerging that may replace them both. The light emitting diode (LED) bulb has benefits that make it a superior technology.

Whereas the incandescent bulb generates light in a vacuum and the compact florescent bulb does so in a tube, the LED is referred to as solid-state lighting. It is solid state because it uses solid matter, a semiconductor, to produce light.

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

The 2 great advantages of LED light bulbs are their very long life and energy efficiency. They only use around one tenth as much electrical energy as usual bulbs and therefore offer huge financial savings in energy expenses and a reduced carbon footprint. This actually makes them both cost efficient and eco friendly.

Their solid state structure and low heat emissions give them a longer lifespan. LED light bulbs significantly outlast even compact florescent bulbs and can easily last for a decade or much longer in normal use. This not just saves on the cost of the bulb, but it additionally saves time and replacement costs. Much better suited to survive rough handling and outside conditions, a LED light bulb can be relied on to work when needed most.

Since they attain their full brightness almost instantly and are mercury free, LEDs solve a couple of major problems that compact fluorescent bulbs have (mercury content and lag time in reaching full brightness).

LED light bulbs are meant to emit an extremely directional light so the light may be aimed precisely where it's needed. Additionally, their light is closer to the colour of daylight, which studies indicate helps people keep 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 typically emitted caused a dimmer light that made LEDs unsightly for home use.

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 rectified 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 very unlikely to achieve mass consumer acceptance until their costs come more in step with other kinds of bulbs. Though their prices are coming down, LED light bulbs are still comparatively pricey.

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