current to pass in only one direction. When current is applied, the LED
emits light. The module is usually used in creating portable lighting.
Some of the applications of the module are: night lights, outdoor lighting,
headlamps, flashlights, book lights, and multiple bulb units. In all of
these applications the module emits bright light from a very small bulb.
Traditionally, light bulbs make light when the filament is heated by
electricity. This means that if the filament ceases to function the bulb
does not give light.
LED bulbs usually don't have a filament and instead have electrified
semiconductors. There are a number of materials that can be used as
semiconductors.
The most amazing thing is that the material used as the semiconductor
element is the one that determines the color of the light given out.
Some of the popular materials used as semiconductors are: aluminum gallium
indium phosphide (AlGaInP) which gives orange, yellow, and red color. There
is also indium gallium nitride (InGaN) that gives blue and white color.
*Advantages of the modules*
There a number of benefits that come with LED modules. One advantage is
that the module has a longer lifespan. The manufactures say that the
devices have a lifespan of 50,000 hours which means that you save a lot of
money since you don't have to keep on buying the devices every now and then.
The other advantage is that the devices require just small amount of power
to work; therefore, you spend less on your electricity. The reason why they
require just small amount of power is because their efficiency is very high.
Another advantage of the modules is that they can be used on a number of
applications. For example, they can be used in house lighting, glowing ice
cubes, color-changing wands, and in LED-lit sunglasses.
The modules can also be used in mugs, faux candles, and in different types
of jewelry; therefore, regardless of the type of application that you have,
you will most definitely get a LED bulb to use.
*Cons of the modules*
Although, the devices are very effective in reducing the cost of operation,
they tend to be expensive to purchase; therefore, many people are unable to
afford them especially if they want to install a lot of lighting.
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