About Leds

LEDs are semi conductor diodes that convert electricity into light energy. When electricity is passed on to the LED chip a colored light is emitted. The color emitted is directly related to the chemical composition of the LED chip. Another way to describe an LED is “solid state lighting” (SSL).

What are the chief benefits and features of LEDs as a source of light?

Lower Power Consumption

LEDs consume 10% of the energy of incandescent. This means lower power requirements and batteries will last 10 times longer


LEDs are rated for 100,000 hours of operation or 11.5 years continuous use. The extended life translates into less downtime and related labor/replacement costs

Durability and virtually little or no heat

Since LEDs do not employ a filament as in incandescent, solid state lighting is impervious to shock and vibration. With very little heat produced, LEDs are not susceptible to heat deterioration of its inner parts, like filaments employed in incandescent.

LED Quality of Light

LEDs emit a noticeably intense directional output of light. The light emitted from an LED is stronger, sharper and more vibrant than incandescent, which emit light predominantly as a result of intense heat.

How does an LED emit white light?

LED white light is created by:
(a) mixing several LED chips of different colors to make white light in the LED housing
(b) using a blue LED with a phosphor coating which converts the blue light to white

Why do white LED lamps cost so much more than colored LEDs like red or amber?

Due to the extra fabrication process which requires additional labor and component costs, white LEDs cost more than colored ones. While costs have been coming down with production efficiencies there are also licensing costs associated with patents acquired by companies in the white LED field.

Since LED lights are more expensive, are they worth the purchase?

While being more expensive at the out set, they save money over the long run due to their longer life and in the case of batteries which will last 10 times longer in a LED battery operated device.

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