Have you been wondering what LED light is all about? Or you have been wondering why people purchase it? Maybe you just wanted to know all about it? Then you are on the right page because this comprehensive review will give you all the information you needed to know about LED and all that it has to offer.
Overview Of Led Light
The LED light can be said to be the electric light that is used in light fixtures which delivers light using one or more light-emitting diodes otherwise known as LED. It emits light when current flows via it. LED lights have more lifespan compared to other types of lights like fluorescent lights. It can also be described as a semiconductor device that emits light due to electroluminescence effect.
How Does Led Lighting Works
LED lighting works when a light-emitting diode which is a semiconductor light source emits light when current flows through it. The electrons in the semiconductor recombine with electrons and energy is released in the form of photons. It is on record that the first visible light LED was limited to red and of low intensity.
LED Materials Used
The materials used for LEDs comprised of compound semiconductor materials. There are gotten from the group 111 and V of the periodic table. The two outstanding materials used for making LED are gallium phosphide and gallium arsenide.
Application of LED Light
LED light is used for both special-purpose lighting and general lighting too. LED lights can be used in homes. Offices, schools, factories, outdoors etc. LEDs can be found in mobile phones, televisions, cars, bikes, and street lights.
Types of LED Light
The following are the types of LEDs:
The Through-Hole LEDs
These are LED that comes in various sizes and shapes and usually come in colors like yellow, green, red, blue etc. the most sizes of these type of LED are 8mm, 5mm, and 3mm.
The Surface Mount Light Emitting Diodes (SMD LEDs)
These ones can be easily surface mount on a PCB and they can be differentiated via their physical dimension. The common ones are 5050 and 3528.
The Bi-Color LEDs
These types of LEDs can emit two colors as their name implies and have three leads i.e. two anodes and a common cathode. So the color will be activated according to the configuration of the leads.
The Red- Blue- Green LED (RGB LED)
These ones are the most popular and the most used LEDs, especially among designers and hobbyists. This type of LED has 3 LEDs on a chip via a technique known as pulse width modulation. RGB LEDs can be controlled to produce a wide range of colours.
The High –Power LEDs
LEDs of high power are said to be 1 watt or more than that. Other normal LEDs have power less than that. High power LEDs are really bright and they are mostly used in headlamps, flashlights, and spotlights. The input power requirement for these LEDs will be high as well.
Price Of Led Light
The price for LED light varies in Nigeria because it comes in different sizes, colors, and brands but the price ranges from N250 to N15,000 and the price also depends on where you buy from and if you are buying in bulk or in retail.
Who Invented LED?
Want to know who invented the led light, It was invented and developed by Nick Holonyak, Jr in December 1st 1962.
Benefits Of Using Led Light
LED light comes with numerous benefits, the following are benefits derived from using LEDs
- LED lights are really energy efficient
- They last longer than other light, therefore money are saved by the buyers
- They are tough and durable, you are sure of having it with you for a long time
- LEDs have reduced UV emissions compared to other lighting like the fluorescence bulbs
- Their design flexibility is best to none. Its offers great design flexibility than other lighting
- No matter the temperatures, it works better in it. They can work in extreme temperatures
- When used they work instantly and they are ecologically sound.
- They good for your eyes especially at night
Do LED Light Get Hot?
LED lights are not hot; because heat does not produce heat in the form of infrared radiation which incandescent light does that make it hot to touch. The absence of IR radiation makes LED fixtures to be placed in areas where heating from basic sources would cause a specific problem like illuminating textiles or food. But then LEDs don’t release heat at the semiconductor junction in the device.
Why LED Light Is Better
LED lights are better because of the cost benefits derived, despite the fact that they are expensive (production cost) but the high initial cost is being offset by lower maintenance cost, lower energy consumption and other factors. Another factor is that LEDs switch on rapidly even when cold and this is to the advantage of some applications like the vehicle brake lights.
LEDs are also environmentally friendly because they do not contain mercury and they are energy-efficient in nature. You can have them in different colors because there are available in a broad range of brilliant colors. Lastly, they are better because they are low-voltage light sources compared to other lighting sources.
Advantages and Disadvantages of LED
The advantages of LED light:
- Reduced power consumption
- Fast switching
- It is physically robust
- It needs low maintenance
- It can be used for a lifetime
- It last longer
- They are high efficiency light sources
- The brightness is high but still consume small power
- It has reduced heat.
- It does not release polluting radiation
- LED light is resistant to shocks and vibrations even in a certain cold environment.
The disadvantages of LED light:
- High initial price
- Can cause over-heating in high temperatures
- It can damage the eyes and disturbs natural sleep rhymes
There you have it, the comprehensive information about LED lighting. You can now get out there to get your own LED light no matter how expensive it can be. LED light is worth the buy especially that it is very durable.