March 1, 2019

LED Lighting Terminology & Definitions for Informed Bulk Purchase

LED lighting systems have changed the definition of energy efficient lighting. Modern LED lighting has left conventional bulbs and tubes far behind in terms of luminosity, energy savings, design flexibility and durability. Even though LED lighting products are gaining acceptance across the world, terminologies and acronyms associated with it are difficult to understand.

With this informative blog, SeniorLED aims to shed lighting on common LED lighting terminologies to make sure that purchasers make the right bulk buying decision. Below are the terms related to LED lighting products that few are familiar with but should be taken into account before choosing an LED light system:

LED lighting terms


CCT or Correlated Colour temperature defines the warmth or coolness of a LED system. It is represented by (K). This LED terminology explains the importance of ambience. Below are temperature insights for more clarity:

  • Temperature between 2700-3000k is standard in all incandescent bulbs. It is soft and warm but not highly luminous.
  • LED lights support temperature between 3000-3500k and is recommended for office lighting since they create natural light ambience.
  • Temperature between 5000-6500k on the other hand is considered good for reading, and is brighter as well as cooler than the other temperature ranges.

SeniorLED’s modern LED lighting systems delivers excellent luminous ambience for commercial places and homes by creating relevant   ambient lighting.



CRI refers to Colour Rendering Index. It can be defined as the ability of a lighting system to reproduce colors accurately. CRI plays a critical role by turning  colors and textures into a vibrant palette that helps to display the product by highlighting its details. Most CFL bulbs and LED lights that are used domestically have a CRI of 80.

Colour rendering index (CRI) ranges from 0-100. LED supports all the CRI ranges. A CRI range between 80-100 is rated the best. CRI is considered as one of the most important lighting terminologies and fulfilling this criteria makes modern LED systems efficient than  conventional lighting systems.


LED Beam angle

Beam angles tell where the LED light will be projecting maximum amount of concentrated light. Very few of us are aware of this LED lighting terminology. Beam angle diagrams are built separately for different LED light systems that define how the viewing angle is distinguished from the light emitted by a LED light.

Their terminologies vary according to their type but play a critical role in designing an energy efficient and eco friendly LED light system. Every element, whether it is CRI, RA or CCT, is vital while creating a LED light system.



Watt is directly related to power consumption. This power terminology worked proportionately with incandescent lighting systems. The more the watts, the more light they produced. But modern LED lighting systems hit conventional lights hard with their better lumen index by consuming 70% less power than conventional bulbs and giving higher brightness as compared to the latter.

Do you know that a LED bulb that consumes 9 watts of electricity is capable of delivering same amount of light as a 60 watt conventional bulb? That way, LEDs reduce electricity consumption by 500%.

Don’t forget to check out 15 proven ways to save electricity in your office!


Lumen’s definition says that it is the total output of light or brightness produced by a bulb. Better the lumen, more the light. Sometimes, it’s confused with Watts but that is totally different terminology. An LED bulb generates 80-120 lumens of light per watt that is much higher than a conventional bulb. LED lighting is hailed as the future of modern lighting solutions because they are built to generate more light while consuming less electricity.

SeniorLED has a decade long experience in researching, developing and manufacturing commercial lighting systems that suit requirements of modern businesses without affecting environment.



Spectrum plays a crucial role in choosing a grow light. LED Grow light has replaced a conventional agro-light systems due to its versatile spectrum. This terminology refers to replicating the sunlight by creating wavelengths of red, yellow, green, violet and infrared light. Not all the wavelengths can be produced by an artificial light system but most of the wavelengths can be converted by a quality LED light that replicates vital elements of the sun that supports plant growth.

Homeowners usually don’t bother with such LED light terminologies since their lighting requirements are small. But when it comes to commercial lighting, such factors should be taken into consideration before installation & bulk purchase.



PF is the abbreviation of LED’s terminology called ‘Power Factor.’ This specification is lesser known to most of the LED consumers. Power factor is calculated by dividing the active power used (watts) by the apparent power drawn from the power grid (VA). You will be surprised to know that an LED uses half the volts of power as compared to an incandescent bulb that produces same amount of lumens using twice the power. Here are few examples of LEDs PFs.

  • LED lamps between 2W and 5W require a minimum 0.4 power factor.
  • LED lamps over 5W and up to 25W require a minimum 0.5 power factor.

LED lighting is energy efficient and eco-friendly solution to power needs.

Check out how LED lights help in saving environment!


IP65, IP67, & IP68

These alphanumeric terminologies represent LED’s water resistance. Listed below are their definitions along with water resistance and waterproofing limits.

IP65 = These LED lights are water resistant. These LED lights are not meant to be submerged. IP65 LED lights  are not waterproof.

IP67 = These modern LED lights are called water resistant plus.  IP67 LED lights should not be submerged in water for more than 10 minutes.

IP68 = These are the lights that can be fully submerged permanently under water. The maximum depth that they can survive  is 3 meters.

Above are some of the most important LED terminologies that you must consider while choosing an indoor or outdoor LED light system. SeniorLED’s futuristic approach towards better lighting solutions has created several benchmarks in LED lighting.

With experience of more than a decade, SeniorLED has lighted most of the continents across the globe with their highly efficient, eco-friendly and certified commercial LED lighting solutions. Want the best price for your commercial lighting needs? Email us at and our LED consultants will connect with you!

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