Many of us have gone through the phase of using incandescent light bulbs. We all know that even though incandescent light bulbs emit huge quantity of light, it is not a very convenient source because incandescent light bulbs need to be replaced very often. Hence one needs to buy about a dozen each month. Another alternative preferred by many is fluorescent tube lights. People prefer this light source because they don't need to be replaced very often but they come with their own set of disadvantages such as gradual dimming is noticed with the passage of time. Florescent lights are also considered to be a threat to environmental health because they contain traces of heavy metal such as mercury and poisonous phosphates, these materials can be dangerous to the health of animals and plants. Incandescent light bulbs and fluorescent tube lights are filament based light sources. Filament based light sources consume a huge quantity of electrical energy out of which most of the energy is dissipated as heat. Filament based light sources are also bad at bearing electrical shocks and physical shocks as well.
Many of the above-mentioned issues can be solved using LED modules. There a number of other benefits that comes with LED modules. One advantage is that the module has a longer lifespan. The traffic light 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. This is why LEDs are termed as the best alternative as far as traffic light modules are concerned.
LED Modules are mainly round in shape and come in various sizes. LED Modules usually use aluminum as a holder that holds the panel. Aluminum is preferred because it is cheaper, and it has reflective surface therefore light can easily be reflected out of the module. The panel in LED Module can contain up to a hundred LEDs.
Beside round shape, led modules can also be bought in other different shapes. Shape and size are variable factors but color of light is another important factor that many people ponder upon before buying. LEDs are also available in Red, Green and Blue colors. These are three primary colors and they can be mixed in variable intensities to create other different colors as well. Owing to different colors of LEDs one can find various LED Modules which either emit monochromatic light or can emit a mixture of different colors at different times. One can also find modules in which the LEDs of different colors are fixed forming design patterns.