The Workings And Benefits Of LED Light Bulbs
Because the compact florescent light bulb has started to quickly replace the aging incandescent light bulb in recent years, a brand new kind of bulb is emerging that will replace them both. The light emitting diode (LED) bulb has advantages that make it a better technology.
Whereas the incandescent bulb generates light inside 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 generate light.
The semiconductor consists of both a positively and negatively charged part. The positive layer has little openings for the free electrons from the negative element to pass 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 benefits 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 costs as well as a reduced 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 significantly outlast even compact florescent bulbs and may 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. Much better suited to survive rough handling and outside conditions, a LED light bulb could be relied on to work when needed most.
Since they attain their full brightness almost immediately and are mercury free, LEDs solve a couple of major issues that compact fluorescent bulbs have (mercury content as well as lag time in reaching full brightness).
LED light bulbs are designed to emit a really directional light so the light could be aimed exactly where it's required. Also, their light is closer to the color of daylight, which research indicate helps people keep alert.
Until 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 often emitted caused a dimmer light that made LEDs unpleasant for home usage.
LEDs are now a lot brighter though and may emit exactly the same soft, white light regular bulbs do.
One drawback with LEDs that has not been rectified yet is cost. While their energy savings and really long life mean LEDs are cost-effective and save money in the long term, they are very unlikely to achieve 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 expensive.
As soon as their prices come down more, LEDs are more likely to become the standard and dominate lighting until a better technology appears.