How Light Emitting Diodes Or LEDs Work?

A light emitting diode or a LED bulb is one of the latest inventions that has become popular with many customers in this day and age. You can see the applications of this versatile light bulb almost everywhere these days - from your mobile phone to the large display boards out there. LED bulbs have numerous advantages compared to conventional lighting systems. On the other hand, the latest technology has helped bring down the price of these bulbs. That is why they are so popular on the market today. LEDs are quite small in size and consume only a very little power to illuminate an application. The wide array of colors available make LED lights one of the most picturesque lighting systems available today. But are you aware of how light emitting diodes or LEDs really work? This article provides information on how light emitting diodes or LEDs really work.

Light emitting diodes fall under active semiconductor electronic components. It is quite a small light emitting device that can emit light in different colors. The cathode & anode of the device are the two terminals that should be connected to a voltage source in order to produce light in different colors. The colors of the light may depend on the semiconductor material used inside it. As the electrons pass through the semiconductor, it turns into light. LEDs are much more efficient in converting energy into light. In fact, more than 80% of the energy of a LED bulb is turned to light whereas only 20% of the energy of an incandescent or CFL bulb is turned to light. More than 80% of energy is wasted in these bulbs due to the generation of heat as a byproduct. That is why LED lights are extremely popular in a wide variety of industries out there.

As the light emitting diode creates light, it will warm up quite a bit. In fact, a LED bulb is heat sensitive. Hence, it is important that this heat moves away without damaging the semiconductor in the process. That is why LED lights need some sort of system to keep the bulb cool during the light-generating process. A heat sink plate is there to move the heat away when producing light. This heat sink plate is made from a wide variety of materials. Aluminum is the most frequent material used for the heat sink plate. In fact, the heat sink plate has become a part of designing LED bulbs. The heat sink plate weighs a few ounces and may become hot once the LED bulb is turned on. The heat will move into the air surrounding the bulb from the heat sink plate. That is why you shouldn't place a LED bulb in an enclosed fixture. It will keep the heat from moving away from the heat sink. This will raise the temperature around the LED bulb. That way the bulb's lifespan will decrease due to the overheating that takes place.

There are LED bulbs that come with light emitting diodes that shine in one direction. This type of bulb will direct all its light towards the top of the bulb. They are mostly used as directional lights. Omni-directional LED lighting is becoming popular in this day and age. This system will help make the LED lights similar to incandescent bulbs. This type of LED bulb will distribute the light evenly throughout the bulb. This is done by bouncing the light off several reflective plates inside the bulb. Even if a LED bulb becomes older, it won't burn out similar to conventional bulbs on the market. In fact, the LED bulb will get dimmer with aging. The industry standard for a LED bulb is that it should last for at least 25,000 hours at 70% of brightness. On the other hand, a conventional bulb will last for a maximum of 5,000 operational hours. That is why LED lights are so popular with a majority of customers on the market today.



The popularity of LED light is due to the numerous advantages offered by the product. LED lights are quite affordable in this day and age due to the latest technology in the industry. The durability, energy-saving properties, and price are some of the most important advantages of LED lights. Here are some of the top advantages and disadvantages of LED lights.

Advantages Of Light Emitting Diodes

 A very low current and voltage are required to power LED lights. In fact, the current range is 5 to 20 milliamperes and the voltage range is 1 to 2 volts.

. The response time of the bulb is only about 10 nanoseconds - which is very low compared to conventional bulbs on the market today.

. The total power output of a LED bulb is less than 150 milliwatts.

. The LED bulb has a lightweight since it is quite miniature in size.

. The light diode doesn't require any heating or warm-up time like other bulbs.

. The lifespan of a LED bulb is 22 years at 50% operation. If you use the bulb at 100% potential, it is guaranteed to work for 11 years without any problem. In fact, LED bulbs are some of the most durable bulbs on the market today.

Disadvantages Of Light Emitting Diodes

. The LED device has a wider bandwidth compared to a laser.

. Even a slight excess voltage can damage the LED bulb. This is one of the main disadvantages of using LED bulbs.

. The temperature will depend on the wavelength and radiant output power.

LED lights are quite versatile, durable, energy efficient, and affordable in this day and age. The latest technology in the industry has made LED bulbs accessible even for the average customer out there. That is why LED bulbs have become extremely popular with a majority of clients on the market. The many advantages of LED lights will help you save money in the long run. That is why you need to invest in LED lights right now.

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