Small But Powerful Energy Efficient LED Light Bulbs

08 Nov

From the beginning of the technology LEDs have advances a long way. They have managed to infiltrate our everyday lives and have shaped what our environments look like.

Light Emitting Diodes (LEDs) are merely small energy efficient light bulbs. They use semiconductor systems to emit light. When LEDs were first opened up in the 1960’s, initially they were employed to emit a very low level of light, generally as indicators for an on/off type system. As technologies have advanced, LEDs have been taken through an intensive redesign and redevelopment program and can create a series of different wavelengths that calculate the color of the light released, right from infrared to ultraviolet. The new models of LEDs have facilitated them to be used in lieu of conventional incandescent bulbs. As prices keep going down, the popularity of LEDs utilized in domestic situations is bound to grow. Not only designed for lighting purposes, LEDs usually are used for displays in monitors and television displays, giving a sensitive and sharp display.

LEDs work by only letting electricity through one way. They are basically comprised of two plates, a positively charged plate and a negatively charged plate. When the current is passed through the LED, the positive charge is drawn to the positively charged plate and the same for the negative charge. When the charges reach a high enough level, the electrons in the plates are ousted by the current passing through. As the electrons from the two plates combine they produce light energy in the form of photons. Photons are produced when electrons have too much energy. This energy is released as light, this is referred to as electroluminescence.

LEDs have advanced ever since the crude beginnings of the systems, so much so that various colors can be made when needed. The radiance level of the light has also improved which has paved way for household use. The look of the LED bulbs maximizes the released light, reducing the loss of the light power.

LED bulbs are used in a lot of everyday devices, some of which you might not notice. For instance in most modern traffic lights. The Red, Amber and Green displays are made up of a collection of tightly packed together LEDs. This has many advantages; the intensity of the light has increased without compromising to see the color display. If one bulb breaks, the whole traffic light does not fail, also the displays can be seen in almost all weather conditions, due to the intensity of the LEDs. In Mobile phones and other hand held devices, TVs and most other electrical appliances. Without this tiny piece of technology, our everyday lives will drastically different from what we are accustomed to today.


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