How Does an LED Light Work?

Without getting all technical and scientific on you, I wanted to give readers a better sense of just how LED bulbs work.  In a standard incandescent light bulb, there is a filament that carries electricity, which as a result causes them to emit light and heat up.  Most of these filaments are hair thin and very fragile.  A sharp blow to the bulb may not always break the bulb casing but it can still break the filament inside.  After a while, the filament becomes weak with use and will break on its own.  This is not the case with a LED or light emitting diode.

In a LED bulb, there is no filament.  Instead there is a semiconductor device, called the diode.  These are not nearly as fragile as an incandescent filament.  They also create the light with nearly no heat, which in turn allows the diode to last much longer.  Since the diode does not create a lot of heat, they can be very small and be covered in plastic.  They also shine very brightly and can take a lot of abuse. 

One of the best things about a LED light is the efficiency with which they can be operated.  Since most of the electricity being put through an LED is being changed to light, they take much less power.  The heat given off by a filament in an incandescent light is usually wasted energy.

You can read more about what makes a LED light so special by reading “Why LED Flashlight Are a Wise Investment

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One Response to “How Does an LED Light Work?”

  1. [...] have always been a big part of LED technology but manufacturers have been able to build upon the technology and incorporate better features into [...]

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