Term Definitions for LED Lighting

Understanding some of the terms used in LED lighting will help you choose the best solutions for your application and learn why LEDs continue to outperform fluorescent and incandescent types. Early on, LED lighting was mostly used in professional environments, but because to technological advancements, it is now mostly used in home, as well.
A two-LED semiconductor light source known as an LED (Light Emitting Diode) produces light when an electric current is run through it. Photons, which are particles of energy, are produced throughout this process. What you need to know, without getting too scientific, is that compared to incandescent and fluorescent models, LEDs are more effective at converting energy into light.

You can have a small profile with a thickness of 1/2′′ thanks to built-in LEDs. LEDs are being incorporated into more and more lighting systems today. These aren’t devices with replaceable LED lights; rather, they are luminaires with permanent LEDs built in. Built-in LEDs have the benefit of enabling lighting manufacturers to produce thinner and more efficient fixtures. These cutting-edge LED models can be fitted in locations where no other recessed luminaire can since they have a thickness of less than 1.5 cm. For instance, many LED users enjoy installing them in order to focus on art, and all contemporary picture lights is based on LED technology.

The normal lifespan of an LED bulb is between 25,000 and 50,000 hours. A standard incandescent light has a lifespan of up to 2,000 hours, or roughly 1,000 hours. Unlike conventional light sources, LED lighting gently ages over time rather than burning out. When purchasing an LED fixture, you will frequently notice the phrase “50,000 hours to 70%” (“L70”). As a result, you may anticipate LED lights to survive at least 50,000 hours, at which point it will have lost at least 70% of its initial power (down 30%). This technology is very promising because of the long lamp life and the low power consumption required to produce the light.

Dimming
Both lighting control and consumer desire for smart homes are growing in popularity. It’s crucial to be able to control the amount of light in a space, thus we advise using dimmers whenever possible. It’s crucial to carefully check this when buying and not assume that every lamp is dimmable. Good LED lighting companies use dimmable LEDs. Another strategy for saving energy and cutting operating expenses is dimming.

Correlated Color Temperature (CCT)
The majority of LED lighting fixtures give users a choice of white color temperatures. On a scale from 1,000 to 10,000, this temperature, or CCT, is expressed in degrees Kelvin (K). The color representation of the luminaire is more like natural sunshine as Kelvin increases. While neutral whites usually have a temperature of 4000K, warmer whites often have a temperature of 3000K or below. White light that is described as “cold” has a Kelvin temperature of 5000K or above. The typical Kelvin temperature for office and home lighting fixtures is in the range of 2500K to 5000K.

Power and luminous flux (watts and lumens)
Lumens and watts are typically used in conjunction while searching for LED lights. Lm/W, for instance, refers for lumens per watt. Many people conceive of watts as a measure of light output. In actuality, the “perceived power” of light is measured in the form of lumens. Lumens measure how bright a light source is. The quantity of electricity you consume, which is what you pay for on your utility bills, is measured in watts.
Lumens per watt is a crucial factor to take into account when purchasing LED lights. One specific LED lamp, for instance, uses just 9 watts while producing 1000 lumens. The same amount of lumens are produced by an equivalent incandescent light using 100 watts, though.

Color rendering index (CRI)

As LEDs were used more often in houses, the CRI scale became increasingly well-known. Color temperature and CRI work together to help you choose the best lighting for your application. CRI essentially measures how accurately a light source reproduces the colors of objects in their truest form. Consider how accustomed we are to seeing things displayed on social media in the context of multiple apps and filters that modify how an object or item appears in real life. CRI aims to remove the filters and precisely depict colors in their natural state, whether they are in a work of art that is hanging on the wall or food that is being made in the restaurant. LED light sources with a CRI of 90 or more are regarded as having the best color rendering on a scale of 1 to 100. Under LED lighting, colors will seem more realistic the higher the CRI.

Line voltage, often known as 110-120 V in the USA, Canada, and a few European nations, is the typical voltage used in sockets and junction boxes. It is 220 V in the post-Soviet zone. As a result, line voltage luminaires do in reality support the “plug and play” approach.

Low voltage lighting normally uses 12V or 24V, and to prevent the low voltage bulb from burning out, a transformer is needed to step down the mains power. The transformer for low-voltage lighting is either integrated into the fixture (the lamp’s driver) or located separately (power supply for LED strips).