What Is LED Light ?

what is led light

As for the physical construction, manufacturers connect LED chips together to increase light output. The most common types of combinations available in the market include DIP, SMD, and COB. 

So what is LED light, or what is LED lamp

In lighting equipment, technology, people assemble LED chips together to create a light source placed inside products shaped like a round ball, long tube, candle shape, round sphere, downlight, etc. These products are called LEDs lights, also known as LED lamps or bulbs.

what is led light
What is led light ?

Features Of LED Lights

LEDs have an extremely longer lifespan and higher efficiency than incandescent lamps and are much brighter than fluorescent lamps. Some types of chips can produce more than 300 lumens/watt. 

In 2014, the LEDs market reached 2000 billion USD and was expected to reach 25 billion by 2023. According to statistics in 2016, lighting devices using new LED technology only account for 10% of the market share compared to other lighting technologies.

Unlike the vast fluorescent bulbs (compact fluorescent or CFL), LEDs reach full brightness without warm-up time; their lifespan is thereby longer than fluorescent lights. LED lights often initially cost higher than incandescent and fluorescent lights. However, when it comes to energy savings and longevity, LEDs are more economical.

Almost all LEDs products’ design uses standard holders that can substitute for incandescent or fluorescent lamps. Producers also mention state lumen, watts capacity, color temperature, and temperature range on the package. They do not produce lights in all directions, and their characteristic direction impacts the design, although many advanced LEDs can illuminate all 360 degrees.

Similar to most other lightings, high temperatures can affect LEDs, though they emit almost no heat when working. These temperatures can cause damage to LEDs, such as reducing their lumen and lifespan. Thus, LEDs often come equipped with additional heat sinks and coolers. The longevity of LED lights depends largely on the quality of the heatsink.

The LED chip has to be converted from alternating current to direct current by a transformer and converter device known as the driver when operating. 

When equipped with a high-quality driver, LEDs have a longer lifespan and come with lighting control features. Depending on the lighting application, the driver can be placed inside the bulbs (integrated LEDs) or outside (standalone LEDs). For example, people use outdoor LED drivers for lighting the street, point LED drivers for lighting indoors and linear LED drivers for advertising lights.

Types Of Led Lights? 

How many kinds of LEDs are there? Let’s continue reading to know more about the LEDs’ world.

LED Bulbs

What is LED bulb? People often select LED bulbs among others in modern architectural lighting because of their energy-efficient and environmentally-friendly features. LEDs bulbs have flicker-free technology with minimum glare.

When equipped with a dimmer switch, you can reduce the brightness level of LED bulbs according to your preference. LED bulbs also come in a variety of colors for you to choose from.

Panel Lights

Like LEDs bulbs, LEDs panel lights are energy-saving and environmentally friendly. However, they have a thinner design, which helps save space in public places, like in the false ceiling of the office or lobby. Panel lights are also suitable for working places as they provide stable and proper light, helping avoid damages to workers’ eyes. 

Similar to other LEDs types, panels have a long lifespan and can remain constant, and never get dimmer during their working time. 

Tube Lights

Similarly, LED tube lights are energy-efficient, environmentally friendly, maintenance-free, durable, and produce less heat when compared to fluorescent lights.

Nowadays, LEDs tubes are used widely in many households as they cut down the cost of electricity in the house. You can also find LED tubes in many high ceiling offices since they provide constant light in every corner. 

Variants Of Lights

LED lights come in three variants: warm white, cool white, and cool daylight.

Warm White

Warm white lights create 2700 Kelvin Degree temperatures, giving users a warm feeling. Due to its yellow color, you may feel like they have the same light as incandescent lamps and halogens.

Thanks to the warmth and hospitality it brings, people often use warm white light in restaurants, hotels, hostels, or showrooms.

Cool White

Cool LED lights are quite similar to natural sunlight. Cool White LEDs release 4000 Kelvin Degree Temperature. It provides a luxurious and elegant feeling for the space. 

Normally, cool white LEDs are used in the office, malls, or creating decorative objects, to help people stay awake and focus on their tasks better.

Cool Daylight

Cool daylight LEDs lights provide 6500 Kelvin Degree Temperature. Compared to cool white and warm white LEDs, cool daylight bulbs produce the brightest lights. It is suitable for installation in offices, manufacturing sectors, domestic and commercial areas, creating a soothing atmosphere and enhancing the work quality. 

How Long Do Led Lights Last? 

LED lights have much longer longevity than almost all other lights in the market. On average, their lifespan can reach 50,000 hours, approximately 50 times longer than incandescent and 25 times longer than halogen lights.

Still, it’s worth noting the actual lifespan of LEDs can be different based on how you use them. Many factors can shorten the lifetime of LED, such as the temperature, long using hours, or unstable electricity supply. 

LED Light: Pros & Cons


  • Produce more luminous flux than others in the same power level
  • More compact than other lights
  • Turn on/off several times without affecting the longevity
  • Long lifespan
  • Directional lighting


  • High initial cost
  • Can be affected by temperature
  • Very sensitive to voltage
  • Quality of the light

In A Nutshell

Hopefully, you now get a detailed answer for the main question – What is LED Light? LED light is not a new invention, yet it’s definitely one of the greatest inventions ever in the evolution of lighting! Though LED lights still have some drawbacks, there is no denying that they contributed great significance to our daily lives!