LED-Light-Bulbs
LED Light Bulb
LED-Light-Bulbs are solid-state, semi-conductor devices capable of producing a lot of light with relatively little electricity while generating very little heat and long operational life spans of 50,000 hours.
What is a Semi-conductor? A semi-conductor is an element a or substance which conducts electricity under certain conditions but will not conduct under others.
More importantly, a semiconductor has properties between that of metal and an insulator and these properties can be effected or controlled by temperature.
So, where were we? Ah, yes. You can find LED Light-bulbs to replace your conventional incandescent and compact fluorescent bulbs and they will fit into most bulb sockets without difficulty and that means there is no need to worry about changing light fixtures.
A whole range of lighting products use LED light bulbs these days, including some of the holiday and festive light devices.
LED-Light-Bulbs are low voltage, direct current (DC) devices and would be damaged or more likely, destroyed if you tried to operate them at a far higher voltage like household power (120V, 240V, etc.) directly so, for practical purposes, voltage must stepped down and household alternating current (AC) current convert into DC.
LED Light Bulb
For household use, LED bulbs come in forms reminiscent of the conventional bulbs they are meant to replace as a matter of practicality and not just one of aesthetic.
Think of clip-on lamp shades and you understand why the technology has moved forward while the form remains the same although some new bulb designs incorporate cooling fins, optics, even colour change functions and remote control functions.
The LED bulb family is now huge. Everything from the traditional bulb to fluorescent tubes commonly found in offices to spot lights and flood lights one might find in shops and restaurants have an LED counterpart.
As highly efficient as LED-Light-Bulbs are though, the light output of the typical LED is quite low when compared to their incandescent and fluorescent cousins but fortunately, we have new products which produce much more light than previous generations.
They cannot produce white light as easily as say, incandescent but white light can be blended from three LED bulbs coloured RED, GREEN and BLUE. A second method uses a phosphor material which absorbs light at one wavelength and then generates white light.
So, with all this good news, why are these lights not swallowing the market? LED-Light-Bulbs cost quite a bit more than their conventional cousins, but that will change in time.
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