How Long Do LED Light Bulbs Last? What Affects LED Lifespan? (2023)

Everyone will often look forward to getting the ultimate lighting experience. It is during such pursuits that one will want to know how long do led light bulbs last. Indeed, longevity is an aspect that you can hardly overlook. That is because it will be definitive of the experience you will share and the value for money that you get.

You can hardly ignore how LED lights have become popular in the recent past. But how long will your LED last? Here are a few insights that you will want to keep in mind.

How Long Do LED Light Bulbs Last?What Affects LED Lifespan? (1)

How many hours do LED bulbs last?

That LEDs are some of the long-lasting bulbs is no news. On average, these lights will last for up to 50000 hours or even more. However, you will find a few of them that will hardly go beyond 10000 hours. Did you know that this level of longevity is approximately 50 times that of incandescent lights?

Assuming you use these bulbs for approximately 15 hours a day, they will last for up to 10 years. On the other hand, these bulbs could last for up to 17 years if you use them for 8 hours a day.

It would suffice to mention that non-replaceable LED bulbs attract a distinct lifespan. Mostly, experts suggest that these non-replaceable bulbs could burn for up to 30000 hours. That implies that you could have them for the next 14 years.

While at it, understand that LEDs will hardly burn out like other forms of lighting. Instead, they will dim or degrade with time. As such, the brightness you enjoy today is not the same you will get in the next two years. Once you feel that the LED is becoming too dim for you, you will be free to replace them.

Aspects that influence how long LEDs last

Various aspects go into determining the lifespan of your LEDs. Each of these elements will have a significant impact, and understanding them will be of great value. Some of the top factors will include the following.

1. Excessive temperature and heat stress

While LEDs are often much cooler, they still emit a little heat in their diodes. If this heat becomes relatively too much, it could compromise the longevity of your bulb. As such, ensure that you understand whether the design can help reduce any heat stress within the bulb.

2. Electrical overstress

You could also refer to this factor as EOS, and it involves situations when the LED gets more than the recommended power.

This problem arises from human errors, faulty components in the bulb, and poor PCB layout. Defective power supplies are yet some of the most significant contributors to this problem.

3. Material defects

Usually, LEDs will decay over a long period. That happens because of the varying light intensities produced by such bulbs. As the elements of this bulb keep deteriorating, your lamp keeps dimming over time.

You can never go wrong with LED lights. They will not only last long but also assure you of the ultimate lighting experience.

Pros and Cons of Using LED Lights

From their enhanced energy efficiency to a better lifespan, LED lights have slowly become a darling for many people. That these lights have also become relatively popular in the recent past is no secret. It is in this regard that it will be vital to understand what LED brings to the table.

How Long Do LED Light Bulbs Last?What Affects LED Lifespan? (2)


Usually, value for money will be dependent on not only the lifespan but also the benefits that you get in the long run. With LED lights, you will be confident of various benefits, including the following.

  • Energy Efficiency

That energy bills could be far-reaching is no longer a secret. Each dollar, for this reason, is worth saving. Fortunately, LED lights will assure you of up to an 80% better efficiency level when compared to incandescent or even fluorescent lights.

It will suffice to mention that up to 95% of the energy in LED gets converted into light. That implies that only 5% will end up as heat.

While at it, these LED lights will draw much lesser power than its counterparts. For instance, in a room where you need an 84W fluorescent light, you will only need a 36W LED light.

With the enhanced energy efficiency, you will be sure of reduced demand from power plants. There will also be hardly any greenhouse emissions for you to worry about in the long run.

  • Enhanced lifespan

The longevity of any bulb will always define the returns that you get from it in the long run.

More than often, you will be sure of this LED light lasting for up to 50000 hours. It could even be more. This lifespan is six to fifteen times that of CFL and fluorescent lights.

You can hardly doubt how such longevity will assure you of lesser replacement costs. Most often, you will witness that replacement will only take place when the bulb becomes too dim for your comfort.

The idea is that you replace this bulb or light once the brightness falls to less than 30%. That could happen after years and years of service.

  • Unmatched brightness and intensity

LED bulbs have proven to be the most reliable when it comes to emitting a high-quality, bright light. It is for this reason that you will no longer need to rely on its wattage to determine how bright it will be.

Thanks to its high number of lumens, this brightness and intensity will remain unparalleled for relatively long. Remember, LED comes with up to 4000 lumens, which is approximately ten times more than what incandescent lights offer.

  • Directional Lighting

Did you know that LED lights will always take a specific direction when lit? This directional illumination comes in handy in making sure that lesser energy gets consumed.

That is because there will hardly be any light trapped within the diffusers or even reflectors. It is through this that there will be no exiting light from that which has been generated.

Well, this feature is vital for recessed lighting, task lighting, and even reading. As long as you need enhanced comfort when doing these things, this should top your priorities.

  • Friendly to the environment

Are you looking for a light that will be relatively friendly to the environment? This option will be the ultimate one for you.

Ideally, with LED lights, you will be confident of no toxic elements emitted in the long run.

There are no harmful elements that could contaminate your environment once disposed of in the long run. This way, you will be sure of protecting not only the environment but also your health.


Their initial cost could be relatively high sometimes.

Do LED lights burn out?

The simple answer to this question would be no. However, more incisive look into the matter could help in making things much more apparent.

LED lights do not rely on filaments for light production, which means that they are likely to provide this light forever.

Unless the LED component gets compromised, you will enjoy this light for the longest time to come. Remember, these LED elements can only degrade as time goes by.

However, it will be valuable to invest in proper maintenance practices if you intend to have it last longer. Take the time to understand its compatible dimmers and ensure that you do not overheat them. Also, you will have to use them for the right application at all times.

Is it cheaper to leave LED lights on?

How Long Do LED Light Bulbs Last?What Affects LED Lifespan? (3)

Are you worried about compromising the integrity of your light by switching it on and off? You should not. LEDs rely on electro-luminescence, which means that there will hardly be any effect when you switch them on or off now and then.

However, when talking of affordability, you will always save a fraction of energy when you switch off the lights. While it might be insignificant in some households, this is a practice that could come in handy for you in the long run.

So, yes, it is cheaper to have the lights off whenever not in use.

Can LED Lights be left on for 24/7?

First, the choice to leave lights on is solely on personal preferences. That LED lights are built to last long is no secret. It is for this reason that there will be no issue if you decide to leave your lights on for 24 hours, seven days.

Thanks to the minimal light they tend to produce, there will hardly be any problem for you to worry about during this period.

Remember, there will be minimal heat emission, and you will hardly have any fire outbreaks at the end of the day.

How do you stop LED from flickering?

Various measures go into stopping LED lights from flickering. Some of the top things you might want to consider at this time will often include the following.

1. Ensure all your LED products are compatible.

2. Inspect and confirm whether you have any loose wiring. Fix any that you find.

3. Aim at using a constant-current LED driver.

4. Use LED power supply at all times.

What is the best LED light bulb you can buy?

  • Philips a19 LED light bulbs with warm glow effect provide 800 lumens of soft white light, equivalent to 60-watt incandescent. These bulbs fit standard medium base (E26) Fixtures with the look and feel of a classic bulb. Not for use with Philips hue products
  • Warm glow dimming offers flicker-free, silent dimming that works with more dimmer switches than any other LED on the market. The more you dim, the warmer the light-from 2200- to 2700-kelvin just like traditional incandescent light bulbs
  • These best-in-class, energy Star certified Philips LEDs provide steady, natural Lighting at 1/4 of the energy of incandescent, 1/2 the energy of Halogens and with 10X and 4X the lifespan respectively. Philips LEDs are mercury-free so they don't contribute to harmful hazardous waste
  • a19 soft white light bulbs are perfect anywhere you need a balance of clarity and warmth with the flexibility of dimming in an slightly smaller bulb. This bulb can be used in enclosed Fixtures and Damp locations
  • This 8-pack of a19 LEDs is expected to deliver a lifetime of up to 15, 000 hours and over 20 years based on standard usage of three hours per day, saving you the cost and hassle of frequent bulb replacement


In conclusion, you can hardly overlook the significance and worth of LED lights. As long as you maintain them accordingly, they will last you for a lifetime.


What affects LED lifespan? ›

Many factors can influence the actual lifespan of the LED, including intense heat, a high frequency of use, and operating the LED light on a higher current than intended. So, how long do LED lights last? The reality is that the lifespan of an LED light will typically fall within a range of about 4 to 6 years.

Do LEDs weaken over time? ›

LEDs, however, do not contain a filament and instead illuminate using a semiconductor. So instead of just instantly burning out like traditional bulbs, LED lights age over time and progressively get dimmer until they stop working altogether. This is what we call “lumen degradation” or “LED degradation”.

What is the life expectancy of LED? ›

LED bulbs afford in the region of 50,000 hours of light, with some brands boasting as many as 100,000 hours. In general, terms, if you use your lights for 10 hours each day, LEDs should serve you well for just shy of 14 years.

Does turning LED lights on and off shorten their life? ›

The operating life of a LED is unaffected by turning it on and off. While lifetime is reduced for fluorescent lamps the more often they are switched on and off, there is no negative effect on LED lifetime.

How do you increase the lifespan of an LED? ›

4 Ways to Extend LED Life Expectancy
  1. Control LED Lights When Not in Use. ...
  2. Avoid Frequently Turning Lights On and Off. ...
  3. Occupancy Sensors & Motion Light Switches. ...
  4. Extend the Average Life of LED Bulbs With Timed Light Switches.
Jun 10, 2020

Why do my LED bulbs burn out so fast? ›

Unlike incandescent light bulbs, LEDs don't produce light using heat. This is part of what makes them so energy efficient. The downside is that their components can be sensitive to overheating, which can cause them to burn out prematurely.

What disadvantages do LEDs have? ›

  • High initial price: LEDs are currently more expensive (price per lumen) on an initial capital cost basis, than most conventional lighting technologies. ...
  • Temperature dependence: LED performance largely depends on the ambient temperature of the operating environment – or "thermal management" properties.
Sep 21, 2015

Why do LED lights fail so often? ›

There are a number of basic reasons for LED lights to fail but the primary issue is heat. Over-heating can be a result of a number of design and assembly issues but is still the cause of the majority of LED lamp failures – both in the fitting themselves and also the drivers.

Do LED light bulbs really last 22 years? ›

One of the biggest advantages of LED light fixtures, is their extended lifespan. While incandescent light bulbs were built to last around 1,000 hours, the most enduring LED light fixtures have been tested to last as long as 100,000 hours. On average LED light bulbs will not have to be changed for at least 20 years.

What is the longest lasting LED? ›

The SOLHETTA LED bulb lasts 25,000 hours – that's 20 years when used for 3 hours a day. This means that the next time you'll have to change an LED bulb will be the year 2042. Isn't that a bright idea?

How often should LED lights be replaced? ›

While the lifespan of LED lighting depends on its use and application, most standard lamps last 50,000 hours, while dimmable LED lamps can last nearly 100,000 hours. For facilities like hospitals and distribution centers that have lights on 24/7, that (theoretically) could mean longevity of six years.

What shortens the life of LED bulbs? ›

But in ordinary use, the bulb's life can be shortened by environmental conditions such as heat and humidity, the effects of power-supply cycling, when the lights are switched off and on, or the failure of other components.

Do LED lights cost a lot to keep on all day? ›

While LEDs are more expensive than traditional incandescent bulbs, they still save money because they last a long time and have very low energy use.

Is it better to leave lights on or off at night? ›

Outdoor security lighting is effective if there are people — neighbors, pedestrians or police — to actually see suspicious activity. "If you're in a rural area, you're basically in a secluded area — you're better off turning off because the lights would help an intruder actually see," Felson says.

How do you maintain LED bulbs? ›

But there are a few simple steps which can be taken to help maintain the quality and extend the life of your LED lighting system.
  1. Clean Surface Prior to Install. ...
  2. Avoid Excessive Contact. ...
  3. Limit Exposure to Moisture. ...
  4. Provide Occasional Dusting. ...
  5. Check Connection Points. ...
  6. Remove Splatters and Stains. ...
  7. Eliminate Debris or Residue.
Apr 12, 2016

Do dimmers make bulbs last longer? ›

Not only do modern light dimmers save you energy, but they also extend the life of your light bulbs! Dimmers use a “Triac Switch” to rapidly turn a light circuit on and off to reduce the energy flowing to a light bulb. This switch will cut the energy running to the fixture up to 120 times in one second.

Can you overuse LED? ›

Light therapy cannot be overdone for most people. If you notice any extraordinary results, stop treatment, and contact your physician. For the best results, choose the right device style and LED color, and use it as directed.

Can LED lights cause a fire? ›

Overheating is one of the reasons a bulb could start a fire, but that is highly unlikely to happen with LED lights. They may feel hot to touch, but they produce light at a significantly lower temperature than other bulbs.

Why are my LED light bulbs flickering and burning out? ›

It could be a number of things. But most commonly, LED bulbs may flicker or dim in your home when there are voltage fluctuations in your home's wiring. When electrical loads turn on and off in your home, this creates a change in voltage levels, which may cause the LED lights to occasionally dim or flicker.

Why don't LED bulbs work in my fixture? ›

The reasons for this can vary considerably from the power source to the bulb itself. Reasons often include a faulty power supply, loose connections, a faulty circuit design, or even damage due to water ingress caused by rain.

Is switching to LED lights worth it? ›

LEDs will last much longer than many alternative light bulbs. Depending on daily use, one bulb will last for decades. While LEDs may be generally more costly, in the long run, your energy savings will more than make up for the initial expense of making the switch to LEDs.

Do LED lights affect your brain? ›

It is unlikely to cause direct serious health damage. Even more, it can't greatly affect human brain memory, but long time use of low brightness light can be turned into a serious issue. It is known that the sympathetic nerves are overstimulated. It also suppressed the secretion of the sleep hormone 'melatonin'.

What are the safest light bulbs to use? ›

However, high quality LEDs are the safest light bulbs available. Most manufacturers have stopped making glass LED bulbs and opt for plastic or acrylic instead, so they're less prone to shattering and less likely to harm you if broken.

Do LEDs emit radiation? ›

A light-emitting diode (LED) is a semiconductor device that emits optical radiation when an electric current passes through it.

Can LED bulbs be used in older light fixtures? ›

As long as the mounting base (socket) is the same size and type, you can use an LED bulb in an existing fixture. If the mounting base isn't the same size and type, the LED bulb will not fit the socket. You should never use a bulb with a higher wattage than what is recommended for the fixture.

Do LED bulbs flicker before they burn out? ›

LEDs only provide light when an electrical voltage runs through them. If this voltage is not constant, flickering will happen. This only affects LED bulbs because others like halogens and incandescent maintain enough heat to cover brief gaps in voltage. LEDs don't.

What is the failure rate of LED bulbs? ›

But LEDs are only worth the investment if they actually do what they say they can. The industry standard for LED lamp failure is three per cent.

How do you know when an LED bulb is going bad? ›

LED Light Too Dim

It usually happens either when the LED gets too old or when it's poorly designed. LEDs have a life span, so before dying out completely, it's normal to lose brightness. In such a case, you should replace the LED with a new one.

Do LED bulbs really last 10 years? ›

Well, we're happy to tell you they can indeed last for over a decade. Be prepared to be amazed—and to put your ladder away for a while. Once you finally change out your traditional incandescents with LED lights, you won't need to strain to replace those out-of-reach bulbs until the late 2020s.

Are there any LED bulbs that don't flicker? ›

Philips LED Ultra Definition Flicker-Free Dimmable, Eye Comfort Technology, Daylight 5000K A21 Clear Glass Light Bulb, 1600 Lumen, 13.5W=100W, E26 Base, Title 20 Certified, 2-Pack, 2 Bulbs (573675)

Is it cheaper to leave LED lights on or turn them off? ›

Turning the lights off when you leave your room is necessary to help save electricity and lower your utility bills. As a homeowner, turning the lights off when you're not using them can help save money by reducing your electricity bills, extend the life of your light bulbs, and buy bulbs less often.

Is it cheaper to leave a light on or turn it off? ›

While turning off lights saves energy generally, the answer about whether you waste more electricity by turning lights on and off is that it depends. Sometimes it can actually be cheaper to leave a light on rather than turn it off. It all depends, says, on the light bulb.

Do LED lights run up the electric bill? ›

LEDs (Light-emitting diodes) are the most energy-efficient and advanced lighting technology on the market today. Not only do they require much less electricity to run than incandescent bulbs, but they also can last up to 50x longer. As a result, the cost of running an individual lightbulb is quite low.

Why we should be turning off lights at night? ›

Studies suggest that light exposure at night can disrupt the body's normal circadian rhythm, the 24-hour internal body clock that controls your sleep/wake cycle. This can trigger a cascade of metabolic or biochemical changes that affect glucose and cardiovascular regulation, boosting the risk of heart disease.

What is the meaning of red porch light? ›

It turns out, there are several meanings behind the red porch light. It can be used to show support for firefighters, advertise real estate, or even indicate that someone is selling goods or services.

How do I block my neighbors light? ›

How to address light trespass?
  1. Add a privacy fence or side awning. A privacy fence is a tall fence that can be constructed from any materials. ...
  2. Cover your fence with a privacy screen. ...
  3. Incorporate shades in your garden. ...
  4. Use blackout curtains. ...
  5. Talk with your neighbour.
Jul 22, 2022

What can cause an LED to fail? ›

There are a number of basic reasons for LED lights to fail but the primary issue is heat. Over-heating can be a result of a number of design and assembly issues but is still the cause of the majority of LED lamp failures – both in the fitting themselves and also the drivers.

How does an LED get damaged? ›

Electrical stress damage is often catastrophic for LEDs. Types of electrical stress include Electrical Overstress (EOS), Electrostatic Discharge (ESD), and Reverse Bias. Most LED EOS and ESD failures occur due to thermal damage, metallization damage, contact damage, or junction damage.

What factors increase LED performance? ›

The emergence of new materials at the bandgap level such as gallium nitride (GaN) with high switching frequency, will significantly improve the efficiency of the LED driver.

Why would an LED fail? ›

Reasons often include a faulty power supply, loose connections, a faulty circuit design, or even damage due to water ingress caused by rain. Whatever the reason is for your LED lights not working and whatever the tell-tale signs are, there's usually a solution to the issue.

What are the downsides of LED lights? ›

One disadvantage of LEDs is the high initial cost per bulb. Over time, however, LED lights will pay for themselves through energy savings and incredibly long lifespans. Bulbs from various manufacturers may appear noticeably different in terms of their white light hues, so choose a well-known brand.

What brand of LED bulbs last the longest? ›

The SOLHETTA LED bulb lasts 25,000 hours – that's 20 years when used for 3 hours a day. This means that the next time you'll have to change an LED bulb will be the year 2042. Isn't that a bright idea?

What is the failure rate of LED lights? ›

But LEDs are only worth the investment if they actually do what they say they can. The industry standard for LED lamp failure is three per cent.

How do you prevent LED damage? ›

Another way to prevent voltage damage to the LED is to use a power supply with short circuit protection. Then equip the LED board using a diode in parallel to the LED string in reverse polarity. A polarized connector is an ideal choice if you connect the power supply to the LED board using a connector.

Does LED wear out? ›

LEDs are notable for being extremely long-lasting products, but they can't last forever. The average lifespan of an LED is often rated up to 50,000 hours. This is about 50 times longer than a typical incandescent, 20-25 times longer than a typical halogen and 8-10 times longer than a typical CFL.

How can I improve my LED efficiency? ›

Recent research has shown how the efficiency and lifetime of LEDs can be dramatically improved without sacrificing bulk by inserting a single layer of nanoparticles between the LED chip and glass or plastic encasing.

What is the most important feature of an LED? ›

Easily the most significant advantage of LEDs when compared to traditional lighting solutions is the long lifespan. The average LED lasts 50,000 operating hours to 100,000 operating hours or more. That is 2-4 times as long as most fluorescent, metal halide, and even sodium vapor lights.

Why LED are becoming so popular? ›

LED Lights Are Energy Efficient

The primary reason that LED lights are becoming increasingly popular is that they consume considerably less energy. So far, LED Lights are the most energy-efficient lighting source that has been created in recent years.

What are the major defects that can occur to an LED bulb? ›

Common LED Light Manufacturing Defects
  • Overheating. Overheating leads to the lights' illumination failure and wearing out. ...
  • Buzzing noise. ...
  • Quick LED light burnouts. ...
  • Inappropriate LED drivers. ...
  • Wrong color displays. ...
  • Functional testing. ...
  • Durability tests. ...
  • Light testing.
May 27, 2022

What's wrong with LED light bulbs? ›

Most of the time, LEDs function well in incandescent light fixtures. But due to limited air supply, the LEDs can heat up and turn off. Also, the dimming feature might not function when an LED is installed in an incompatible fixture. In such cases, you should replace the fixture with a compatible one.


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