LED has been around us for quite sometime now, however, most of us are unaware of its rapidly increasing application areas and how it works. We all might have come across words such as, energy-saving & long lasting whenever LED is talked about. But are we aware of the fact that why such words are associated with LEDs? Most of us would say, NO….
Hence, first & foremost let’s understand how LED lighting works. An LED is what’s called a “solid-state lighting” or SSL technology. Basically, instead of emitting light from a vacuum (as in an incandescent bulb) or a gas (as in a CFL), an SSL emits light from a piece of solid matter. In the case of a traditional LED, that piece of matter is a semiconductor. In simple terms, an LED produces light when electrons move around within its semiconductor structure.
Their origin itself sets them apart compared to the conventional incandescent light bulbs, which eventually makes them robust & durable. The other characteristics which are very strongly making them the most coveted products are exceptionally longer life span, enormously lower energy usage, reduced maintenance costs and higher safety standards. Currently, the LED lighting has found a wide range of applications such as: residential lighting, architectural lighting, automotive, aviation, broadcasting, electronic instrumentation, entertainment & gaming, industrial automation & controls, military, traffic, safety & transportation as well as lighting for signage.
The different characteristics of LEDs, which make them superior, are:
- Efficiency: LEDs are extremely energy-efficient and consume up to 90% less power than incandescent bulbs. Also, money & energy is saved in maintenance and replacement due to the long LED lifespan.
- Longevity: An LED bulb can last up to 20,000hrs, which is a lot more when compared to incandescent bulbs. This will save on time and money when we consider the operating cost of the bulb.
- Environment: LEDs are made from non toxic materials, unlike fluorescent lighting that uses mercury posing a danger to the environment. LED’s are also recyclable and considered “green” or Earth-Friendly.
- Colours: LED lights are available in a variety of base colours such as Red, Green, Blue and Amber. As traditional incandescent light bulbs use filters to produce colours, they are extremely inefficient. LEDs can be blended together to generate millions of color options.
The replacement of all traditional bulbs by LED has been underway. Many countries have completely stopped the use of incandescent bulbs. The many beneficial traits of LEDs make their arrival highly effective. LEDs are rapidly becoming the preferred lighting solution for both residential and professional users. LED technology is continually advancing – producing brighter LED lighting products. Going forward, LED lighting is certainly going to give us a better tomorrow. It would yield a greener environment and a better future for our children.