Story at a glance:
- LED lights have been rising in popularity consistently in recent years.
- LED lighting consumes significantly less energy than incandescent and CFL bulbs.
- LED lights are adaptable, directional, dimmable, and ever-improving compared to other options.
The technology behind LED lighting has been around for decades, but only recently has it become affordable and reliable enough to rise in popularity so dramatically. From energy efficiency to having a long lifespan, LED lights are both environmentally responsible and budget-friendly.
Light-emitting diodes, or LEDs, are a solid-state lighting solution that use a semiconductor to convert electricity into light, according to the US Department of Energy. This means LED lights do not require a breakable glass bulb like traditional lights.
Plus, LED lights can be used anywhere—from sports arenas to industrial settings to residential projects. They perform reliably and safely in various design applications. If this short list of the benefits of LED lighting isn’t enough to convince you it is a solution worth investing in, maybe one of the following 16 will.
LED lights use up to 85% less energy than traditional bulbs, according to The New York Times. This means LEDs produce savings in electricity costs and simply do well by the environment.
In 2007 Congress passed the Energy Independence and Security Act, which helps the US stay on track with the global shift toward LED and other energy-efficient lighting solutions for everyday light bulbs.
2. Return on Investment
As LEDs become more common, individuals and the US as a whole will notice significant energy savings. According to the US Department of Energy, “Switching entirely to LED lights over the next two decades could save the US $250 billion in energy costs, reduce electricity consumption for lighting by nearly 50%, and avoid 1,800 million metric tons of carbon emissions.”
E3 used Energy Focus LED lights to retrofit the Big Sandy Independent School District in Eastern Texas in 2016. “Cost was a major component for Big Sandy. The LED’s use 15 to 18 watts per lamp as opposed to the 32 to 36 watts per lamp used by the fluorescents. So it saves the schools money and they get a good return on investment,” Tim Evans, vice president of E3, told gb&d.
3. Long Lifetime
LEDs use dramatically fewer watts than traditional bulbs to produce bright light, which means they also last much, much longer.
Most LEDs last a minimum 25,000 hours, according to NOPEC—a nonprofit energy supplier in Northeast Ohio. NOPEC says if you were to keep your LED bulb on all day every day it would be about 15 years before you’d have to replace the bulb.
4. Low Radiant Heat
Among the benefits of LED lighting is the fact that they radiate very little heat—particularly compared to CFL and incandescent lights.
According to the US Department of Energy, incandescent bulbs release 90% of their energy as heat and CFLs release about 80% of their energy as heat in comparison to LEDs. This makes LED lights less hazardous, particularly in terms of fire safety.
Another exciting new development in LED physics is the concept of running LEDs in reverse to create a cooling effect, says Robert Pullman, a lighting industry veteran with over 30 years of experience in every aspect of the lighting industry. Pullman previously shared some of his expertise with gb&d. “Recently it was demonstrated that if you run LEDs backward—rather than doing nothing, as one would expect from a diode—you achieve a very short-range cooling effect to the tune of 6W/m2,” he says.
“Projections forecast cooling capacity in the realm of 1000W/m2. This could be achieved in the future by actually using the LEDs themselves to draw heat away from the processor which opens the door to improved heat performance in wearables, mobile devices, and more,” Pullman says.
5. Bright, Intense Light
LEDs do not compromise brightness or intensity for energy efficiency. They compete with incandescent and CFL bulbs in terms of brightness, making them a good addition to workspaces where bright light contributes to productivity.
6. Instantaneous Light
LED lights have less warmup time compared to other bulbs, brightening rooms and outdoor spaces from the moment the switch is flipped.
7. Design Flexibility
The structure of LED lights allow them to be used both functionally and artistically. In spaces of all kinds LED lights offer design flexibility. In the Yotel NYC, Focus Lighting utilized LED lights in all kinds of applications, from pin spotlights to floor lamps to lit ceiling panels, to adhere to the hotel’s strong brand identity.
In the Broadway Lounge in the New York Marriott Marquis, Tivoli delivered two 15-foot light “trees” with branches reaching out from 21 feet to more than 46 feet using an exquisite inlay of linear light.
8. High Color Rendering Index
Many LED lighting options offer a very high Color Rendering Index (CRI), which means they reveal the true color of whatever they illuminate.
Philips, one of the leading LED lighting companies, makes LED lights with a CRI of at least 80 compared to natural light’s 100. This allows consumers at home to predict how their outfit will look when they step outdoors, for example.
The high CRI of LEDs is also useful in broadcasts, where bright and color-accurate light allows nighttime sports games to look vibrant and real, even on television.
9. Ability to Dim
LED lights can be made to dim just the same as incandescent and CFLs. This increases energy savings and allows the light to adjust to suit the needs of a space throughout the day.
10. Range of Colors
LEDs come in many colors, with surprising and increasingly impressive accuracy in terms of color matching. In one of the rising wellness design trends of today, LEDs perform a crucial role. In accordance with people’s circadian rhythms, LEDs can be programmed to adjust in color and warmth throughout the day.
Tivoli‘s Litesphere True RGB+W can be used to illuminate public spaces with over 16 million color choices. LEDs have come a long way since 1976, when electrical engineer Thomas P. Pearsall invented a bright, high-efficiency LED optimizing transmission wavelength for optical fiber, Tivoli’s Pullman says.
He says the invention changed the design world.
“Pearsall’s LED is not only useful in communications, but Fiber Optic Drops or Star Curtains have also been used by the entertainment and event industries for decades. These industries use CYM (Cyan, Magenta, Yellow), color mixing wheels, and DMX-controlled illuminators to create breathtakingly realistic, simple star fields as well as custom patterns, graphics, and logos. Finally, in 2014, Japanese Nobel laureate and co-winner of the Nobel Prize in Physics Isamu Akasaki invented the world’s first efficient blue light-emitting diodes using gallium nitride.”
LEDs utilize semiconductor material rather than a filament or neon gas.
The light-emitting diode is a tiny chip enclosed in a plant epoxy, which makes LEDs far sturdier than traditional incandescent bulbs or neon tubes, according to the Department of Energy.
12. Great in Emergencies
Because LED lighting provides bright light at such low wattage and can therefore last a very long time, they are a great solution for emergency lighting.
13. Environmentally Friendly
LEDs do not contain mercury, and if their aluminum heat sinks were recycled, their life cycle impact would be noticeably reduced.
Overall their energy savings and basic construction allow LEDs to win the ticket for most environmentally friendly light, according to a three-part Energy Department-funded study.
14. Operable in Many Climates
Particularly in cold environments, LED lights perform exceptionally well.
Recently they have progressed to perform in hot, humid environments as well. Industrial spaces are often not climate-controlled, but Flex Lighting Solutions is one company whose LEDs are a leading option for industrial lighting because of their impressive thermal management technologies.
15. Directional Light
By their very nature, LEDs emit light in one direction instead of all around them.
This 180-degree illumination allows the light to be more precise and useful—perfect for recessed and task lighting—and contributes to energy savings because no light energy is wasted or trapped.
16. Reliable Performance
Again, the basic technology behind LEDs has been around for years and years.
Although the bulbs dim toward the end of their very, very long lifetime, their performance overall is reliable and trusty across spaces, even in conditions with inclement weather or frequent impact.
“Advancements in every disciple and technology—including robotics and AI—are geometric, and the LED is at the core of it all—supporting communications, human-centric environments, responsible power consumption, and conservation all the while proving the tools for creativity, and of course, style,” Pullman says. “Onward and upward for those involved in the green building and design landscape, who can now turn their vision into reality.”