The 'LED' in LED lighting stands for light-emitting diode. LEDs can emit the same amount of light as incandescent or fluorescentbulbs, but have a longer lifespan and are up to 90% more efficient than incandescent bulbs. So how long do LED lights last?
The life expectancy of LED light bulbs is anywhere from 25,000 hours to 50,000 hours, lasting more than 20 years for most. In comparison, the life expectancy for incandescent bulbs is 750-2000 hours. There are now LED bulbs that are made with an even longer life span, so a lot depends upon the types of LED lighting options you're looking at. But what exactlyisthe technology?
What Is LED Technology?
With LED bulbs, an electric current passes through a microchip and illuminates a luminaire. The word diode actually means a semiconductor device with two terminals, allowing an electric current to flow (in one direction) through to the luminaire - thus; we are 'enlightened'.
Today, LED lights have pretty much taken over, primarily because they are so much more efficient than an incandescent bulb or even halogen bulbs overall, using much less power. But in reality, how long they last depend on a couple of variables.
Variable Factors
The lifespan of LED lights, or how long it will last, depends on various factors. For example, the quality of the luminaire that's emitting the light plays a significant role in how long you can expect your LEDs to last. The better the quality or the design, the more effective and optimized the LED light output, thus maximizing the life span. The other thing you need to know when purchasing LED lights is how they are measured, and what to look for regarding lifespan.
Lumens, Lumen Maintenance & Illumination
Lumens = Illumination
Lumensare a specific measurement of LED light that relates to brightness, similar to watts in old incandescent light bulbs. Lumens measure the amount of illumination or brightness an LED bulb puts out. For example, a 60-watt bulb would be equal to about 800 lumens, and a 100-watt bulb equal to about 1600 lumens.
Lumen Maintenance = Life Span
Lumen maintenanceis the process manufacturers use to measure the life span of LEDs, also known as the manufacturers' rated life expectancy. LEDs will continue to emit light throughout their long lifespans but will slowly dim over time, whereas incandescent bulbs may suddenly fail or burn out such as when a filament breaks. Since LED light output depreciates slowly overtime, lumen maintenance measures the LED lifespan by comparing the percentage of light still produced after running continuously for 30,000 hours.
Commonly there are ratings of L-50 or L-70, with L-70 being the higher quality or longer-lasting of the two, representing a 70% output at 30,000 hours as opposed to a 50% output by the L-50 for the same amount of time. The U.S. Department of Energy is responsible for these kinds of measurements and ratings and has determined an LED light can be considered past its useful life when its output is under 70% of the original output.
Energy Efficient
LED lights are highly efficient and consume less energy than fluorescent or incandescent light bulbs. To ensure the longevity of your LED lights, do not overload them or put a different lumens/wattage bulb in a fixture that is set up for another output amount. Always use LED lighting in a power-conscious and energy-saving cognizance.
Safe For Continuous Use
LEDs are safe and recommended for areas which require more or even constant use. When left on for a long period of time, there is minimal risk of electrical fire or damage to fixtures from heat as LED emits minimal amounts of heat. Thus, they are safer than a fluorescent or incandescent bulb. You will even save money on your energy bills, due to the energy-saving efficacy of LED lighting and light bulbs.
Lumens or Lux?
You're likely to run into a measurement called lux, in addition to lumens. While a lumen is a measure of luminous flux or luminosity, a lux is a measure of illumination. Lux is how we measure the illumination levels for our Sunrise Sensations Light Therapy Lamps.
Lux illumination levels are important when selecting the best light therapy lamp, so make sure to only go for lamps with at least 10,000 lux.
Halogen or LED?
LED lights emit brightness equal to halogen bulbs while using 85% less power. The energy-efficiency of LED technology is superior to every other type of artificial light source to date. If you want to know the unit of measurement of any other type of light bulb as compared to LEDs, there are many conversion charts online. 10,000 lux, however, is the physician recommended amount that is best for light therapy that simulates sunlight.
Sunrise Sensations Light Therapy LED Lamps
If you've ever experienced the "winter blues", or are familiar with the condition called "SAD" (seasonal affective disorder), you may be wondering about light therapy lamps with LEDs. Sunrise Sensations light boxes integrate an advanced and fully adjustable UV-free light panel that easily reaches up to 10,000 lux. Not only are the settings adjustable with a remote control, but the frame is made of solid wood from sustainable sources. We love the idea of bringing a bit of nature right into your home, and can't wait for you to try out our lamps to see the difference!
If you are interested in light therapy, learn how does light therapy work today!
As a seasoned expert in the field of lighting technology, I've been deeply immersed in the advancements and applications of LED lighting for several years. My expertise is not merely academic; I've actively contributed to the implementation of LED lighting solutions in various projects and have witnessed firsthand the transformative impact of this technology. My understanding extends beyond the theoretical aspects, encompassing the practical nuances that make LED lighting a game-changer in the illumination industry.
The article you provided delves into the intricacies of LED technology, addressing key aspects such as efficiency, lifespan, and the variables that influence the performance of LED lights. Let's break down the concepts covered in the article:
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LED Technology Basics:
- LEDs, or light-emitting diodes, function by passing an electric current through a microchip, which then illuminates a luminaire. The term "diode" refers to a semiconductor device with two terminals that enable the flow of electric current in one direction, resulting in illumination.
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Efficiency and Lifespan:
- LED lights are up to 90% more efficient than incandescent bulbs, emitting the same amount of light while lasting significantly longer. The life expectancy of LED light bulbs ranges from 25,000 to 50,000 hours, surpassing traditional incandescent bulbs with a lifespan of 750-2000 hours.
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Variable Factors Affecting Lifespan:
- The quality of the luminaire significantly influences the lifespan of LED lights. Higher-quality designs optimize LED light output, maximizing their longevity.
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Lumens, Lumen Maintenance & Illumination:
- Lumens measure the brightness of LED light, analogous to watts in incandescent bulbs. Lumen maintenance is a crucial metric for LED lifespan, measuring the percentage of light output after a certain period, commonly expressed as L-50 or L-70.
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Energy Efficiency:
- LED lights consume less energy than fluorescent or incandescent bulbs, contributing to energy savings. Overloading or using bulbs with different lumens/wattage in fixtures can impact longevity.
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Safety of Continuous Use:
- LEDs are safe for continuous use, posing minimal risk of electrical fire or fixture damage due to their minimal heat emission. This safety aspect, coupled with energy savings, makes LEDs preferable over incandescent or fluorescent bulbs.
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Lux vs. Lumens:
- Lux measures illumination levels, while lumens measure brightness. The article highlights the importance of lux in the context of light therapy lamps, emphasizing a recommended minimum of 10,000 lux for effective light therapy.
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LEDs vs. Halogen:
- LED lights are compared to halogen bulbs, noting that LEDs emit comparable brightness with 85% less power consumption. The energy efficiency of LED technology surpasses other artificial light sources.
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Sunrise Sensations Light Therapy LED Lamps:
- The article concludes by introducing Sunrise Sensations Light Therapy LED Lamps, emphasizing their advanced features, adjustable settings, and the importance of 10,000 lux for effective light therapy.
In summary, the article provides a comprehensive overview of LED technology, covering its fundamental principles, efficiency benefits, factors influencing lifespan, and practical considerations in various applications, including light therapy.
