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Reasons for LED Tube Failures

Reasons for LED Tube Failures

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Today, LED tubes have become much more common and significant as an energy-efficient and environmentally friendly solution to light up an area. However, with LEDs providing more lifespan and less energy consumption compared to other traditional fluorescent tubes, they have become the option of choice for most business entities and homeowners. Nevertheless, despite their numerous benefits LED tubes are not free from failures. Understanding why LED tubes fail is important for anyone who uses them or wants to install them. Here, we will look into the fundamentals, factors, that lead to their short life, and solutions to overcome such problems.

LED tubes, also referred to as light-emitting diode tubes, have replaced fluorescent tube lights in several applications. These tubes are made up of light-carrying diodes (LEDs) that give out the shine when an electric current pulses through them. As a result of this highly productive attribute and longevity, LEDs have become increasingly preferred lights for numerous uses such as tube lights.

Basics of LED Tubes

The basic components and operations of LED tubes are the fundamental basis for appreciating the reasons for their failure. LED tubes are made of light-emitting diodes (LED), driver, and heat sink. The LEDs emit light, the driver supplies a controlled amount of electrical current and the heat sink gets rid of excess temperatures caused by operation. This fusion guarantees optimal output and lifetime.

Common Signs of LED Tube Failure

However, before proceeding to discuss the specific causes of LED tube failure in detail it is advisable first to identify factors that indicate a problem. People often observe dimming or flickering of the lights, color changes, and flashbacks when the LED tubes go bad. These issues can mean other problems that we will discuss in subsequent sections.

Why LED Tubes Fail

1. Environmental Factors

Extreme Temperature:

LED tubes are quite sensitive to temperature changes, which can greatly affect their performance. High temperatures only speed up the degradation of LED components and drivers, resulting in a loss of days. Contrastingly, very low temperatures can limit the functionality of the driver leading to poor performance. It is important that such LED tubes are installed in an environment where the temperatures fall within the recommended ranges to ensure optimum lifespan.


Another environmental factor that contributes to LED tube failures is humidity. Moisture penetration may result in electrical shorts or corrosion of internal parts. In humid conditions, it is important to choose LED tubes with adequate IP rating and sealed fixtures. This keeps the moisture from damaging LEDs and their driver.


  • Temperature Control: Provide controlled temperature conditions for the installation of LED tubes. Do not expose them to harsh heat or cold. Use air fixtures with ventilation to get rid of heat.
  • Humidity Management: Use moisture-resistant LED tubes in humid places. Install fixtures that are properly sealed and gasketed to prevent moisture ingress. Seal inspection and replacement should be done regularly when any damage is observed.
  • Enclosures and Protection: Where there are frequent changes in temperature and the occurrence of moisture cannot be ruled out. LED lamps should be installed into enclosures both for protection from impacts that these factors may cause as well. This further offers defense against the forces of nature.

 2. Electrical Issues

Voltage Spikes and Fluctuations:

Voltage spikes and surges are a substantial threat to LED tubes. Voltage spikes that occur as a result of power surges or lightning strikes have the potential to destroy both LEDs and driver systems. On the other hand, uniform changes in voltages result in inconsistent performance and early failure. The installation of quality surge protectors ensures that the LED tubes are protected from voltage fluctuations, allowing them to maintain their consistency over time.

Inconsistent Power Supply:

LED tubes need a steady and constant voltage for their proficient operation. If the power is erratic, it may cause flickering or dimming that indicates problems. Power supply issues may arise due to incompatibility of fixtures or old wiring. Failures related to electrical issues are avoided by ensuring that the electric layout is up-to-code and suitable for use with LED technology.


  • Surge Protection: Purchase quality surge protectors and ensure that LED tubes are protected from voltage spikes. These components take up more voltage than required by the LEDs and driver.
  • Voltage Regulation: Install voltage regulators for a steady power supply. This minimizes the voltage fluctuations that may damage LED elements. Check the electrical system regularly for wear as well as outdated components.
  • Professional Inspection: Occasionally engage the services of a skilled electrician to check and update your electrical system. Sync the wiring, fixtures, and circuits with LED technology.

 3. Poor Quality Components

Substandard LEDs:

The quality of the LEDs employed in manufacture determines to a large extent, not only their retributions and operation lifespan but also that of tubular lighting. Low-quality LEDs may fail early because they are unable to tolerate the pressures of constant operation. Genuine manufacturers ensure LEDs pass multiple tests, which help make sure the products are durable and can last. If you want to avoid choosing low-quality products, it's important to buy LED tubes from reputable companies.

Low-Quality Drivers:

The current driver, in an LED tube, controls the amount of electrical power that flows to individual LED units. If low-quality drivers are used, they can be unable to supply a steady current eventually causing flickering, dimming, or total failure. The manufacturers who are tuned to quality must have strong trusted drivers that go through rigorous standards of test before they can be installed. Resolving the negative elements by giving priority to reliable LED tubes with high-quality drivers can increase system efficiency and consumer trust, improving user experience.

Inadequate Heat Sinks:

LED tubes rely on heat dissipation for their proper operation. Cheap or improperly designed heat sinks sometimes fail to divert the dissipated glass appropriately and cause not only LED overheating but also processor driver heating up. The thermodynamic stress is likely to fast-track deterioration, resulting in a significant reduction of service life for LED tubes. It is, therefore, necessary to choose LED tubes with strong and effective heat sink designs that help in keeping the required temperature levels.


  • Choose Reputable Manufacturers: Give preference to LED tubes by significant producers, whose performance in the production of quality products is confirmed. Since they have been used in the past, do research and read reviews to prove that their components adhere to industry standards.
  • Warranty Verification: Select LED tubes that come with a warranty covering various items. The warranty period is usually the important criterion in understanding and appreciating a manufacturer’s confidence resting on his/her product.
  • Component Specifications: Get acquainted with LED part specifications. Find tubes with bright and powerful LEDs, and efficient drivers that can support high power loads from the thermechincal systems within them. These should have good heat dissipation mechanisms as well so they don’t overheat when placed at relatively long distances in closed containers or automobiles under load conditions caused by engine operating temperatures.

4. Manufacturing Defects

Assembly Flaws:

In the assembly stage, manufacturing defects may also result in LED tubes of insufficient overall quality. Defects such as bad soldering, misaligned components, or insufficient sealing may result in low performance and early failure of a product. Manufacturers need to adopt strict quality control methods that will help in detecting and eliminating defects before products are sold.

Inadequate Testing:

Another reason is insufficient testing during the production process. Comprehensive testing guarantees the performance of each individual component, as well as a quality check on assembled tubes. Reliable manufacturers invest in wide-ranging testing protocols to identify and resolve such issues at an early stage of production.


  • Quality Assurance Processes: Provide support to manufacturers who have stringent quality assurance measures in place. Seek out companies that utilize rigorous testing practices to discover and fix defects before product release.
  • Brand Reputation: Select LED tubes from reliable brands that uphold quality standards. The reliability of a product is determined by researching the reputation of its manufacturer and soliciting responses from consumers.
  • Product Certification: Prioritize LED tubes with certifications from the industry. UL (Underwriters Laboratories) is among the certifications that show that a product has been tested to ensure safety and performance.

5. Inadequate Installation

Incorrect Wiring:

One of the main causes that lead to LED tube failures is improper installation, such as poor wiring. Wiring problems may cause some other electrical issues, like short circuits or incontinuous voltage and if the LEDs are hooked up to a driver these can damage both the drivers as well. The correct steps and assistance by professionals can also help to address wired-related issues thereby leading to LED tubes being able to form a better support for some time.

Incompatible Fixtures:

Incompatibility of the fixtures with LED technology may lead to insufficient support and poor heat dissipation. Fixtures that were not specifically engineered for the insertion of LED tubes may fail to provide outstanding performance in terms of stability and airflow, leading to overheating and eventually resulting in premature failure. High-performing results are ensured by fixture compatibility with LED tubes and adherence to installation instructions.


  • Professional Installation: Employ certified electricians or people who have worked with LED tube installation. Wiring, fixture compatibility, and guidelines to manufacturers can also be ensured by them.
  • Installation Guidelines: Ensure that you follow the installation instructions supplied by the manufacturer very carefully. This encompasses employing the right fixtures, maintaining adequate spacing between them, and not over-tightening screws that can affect the tubes in different ways.
  • Educate Installers: Educate installers on the application forthwith of specific handling and installation modalities particular to LED tubes. This also guarantees a standardized procedure for the installation.
6. Lack of Maintenance

Contaminant Buildup:

Regular maintenance is important for the prevention of contaminant accumulation on a surface and in LED tubes by applying persistent to methodically remove dirt build-up, after use. Dust, dirt, and other impurities will accumulate over time causing reduced light emissions and leading to an increase in heat capacity. By establishing a specific cleaning program, the performance efficiency of this collection strategy can be secured as it does not allow contaminants to accumulate.

Wear and Tear:

Just like every other technology, LED tubes also age with time. A failure to maintain the parts can create problems such as poor connections, worn-out seals, or damaged components. The routine checks and averaged maintenance help one discover defects in their early stages, therefore extending the life span of LED tubes much more efficiently.


  • Regular Cleaning: Conduct a regular cleaning regimen to clean the surface of LED tubes of dust and dirt. You can clean the device with a soft dry cloth or mild solution from your manufacturer’s suggested cleaning solutions.
  • Internal Inspection: Monitor the interior sections of LED tubes for contamination at intervals. A stronger internal cleaning may be necessary by a professional.
  • Maintenance Checklist: Come up with a preventive maintenance schedule that should contain the activities of cleaning, internal inspection as well as seal replacement for failure. This checklist should be followed regularly to ensure the proper operation of your LED tubes.

As a whole, the lighting industry has changed because of the energy efficiency and durability of LED tubes. To maximize the service life of LED tubes, it's critical to understand the factors that contribute to their failures. LED tube performance is impacted by several factors, including low-quality parts, electrical and environmental problems, and defective manufacturing.

LED tube lifespan may be increased by consumers and organizations that set a high priority on high-quality goods, correct installations, and ongoing maintenance. Every consumer must guarantee that they invest in products of superior quality and are aware of best practices to reap long-term benefits. A proactive approach to maintenance and care will guarantee that the LED tube illuminates for many years, as the world embraces LED technology.