Kaip išsirinkti LED apšvietimą? Vadovas apie ilgaamžiškumą, testavimą ir pakaitalus

LED Lighting (Light Emitting Diode) is a modern technology that has revolutionized the way both domestic and industrial spaces are illuminated. LED diodes are known for their energy efficiency, long lifespan, and high light output. Thanks to these features, LED lighting has become not only an environmentally friendly solution but also an economical one.

In industry, where operational costs and reliability are paramount, LED technology proves to be ideal. Its resistance to harsh working conditions such as high humidity, presence of oils, or vibrations makes it an excellent choice for applications in CNC machines, production lines, and other demanding environments. Additionally, the absence of UV and IR radiation ensures that LEDs do not heat up the surfaces they illuminate, which is crucial in precise manufacturing processes.

How is LED lighting tested?

How is LED durability tested?

LED durability testing is an essential part of verifying the quality and reliability of products. Due to the long lifespan declared by manufacturers, which can be as much as 50,000 hours, standard testing methods must be appropriately adapted. Continuous testing would take over 5.7 years, so more efficient and shortened research procedures have been developed.

Burn-in and stabilization (first stage – 1000 hours)

The first stage of testing is the burn-in and stabilization of the LEDs, which lasts 1000 hours. During this period, the lighting operates under controlled conditions with appropriate current or voltage supply. The goal of this stage is to evaluate the initial increase in light output, which often occurs in the first hours of use. Stabilizing the LED parameters after this period allows for more reliable results in further tests.

Long-term durability tests (second stage – 5000-6000 hours)

The second stage involves tests lasting from 5000 to 6000 hours. After this period, a light output measurement is made, which is compared to the value obtained in the first stage. The results help assess whether the brightness drop exceeds 30% of the initial value. If the light output drop remains within the specified limit, the analysis can proceed to the next step.

Extrapolation of results – how is LED durability predicted based on tests?

Based on the data obtained during the tests, extrapolation is performed, which allows for predicting the long-term durability of LEDs. If after 6000 hours the light output has not dropped below 70% of the initial value, the LEDs meet the assumptions regarding their long lifespan. This method allows for reliable durability estimation without the need for multi-year testing.

Modern methods of determining LED durability (according to IEC standards)

IEC standards introduce methods for determining LED durability, which include measurements at various temperatures and the evaluation of LED module quality. These tests are more precise and reflect the real-world conditions in which lighting is used.

Measurement at different temperatures (55°C, 85°C, and manufacturer's temperature)

Under IEC standards, LED durability is assessed based on light output measurements performed at three temperatures: 55°C, 85°C, and the temperature specified by the manufacturer. A key element is monitoring the temperature at the measurement point on the LED module, which allows for accurate determination of how thermal conditions affect the LED's durability.

Verification of light output drop (70% as the minimum threshold)

During tests, it is checked whether the drop in light output during use does not exceed 30% of the initial value. If the light output remains above 70% of the initial brightness, the LED's durability is considered to meet the manufacturer's declarations. This approach provides better verification of lighting quality and helps tailor products for demanding industrial applications.

What factors affect LED lighting durability?

Effect of temperature on LED lifespan

Operating temperature is one of the most important factors influencing the durability and performance of LEDs. High temperatures, especially at the semiconductor junction, can accelerate the aging process of components and lead to faster light output degradation. To prevent this, manufacturers employ advanced heat dissipation solutions.

Why is heat at the semiconductor junction critical?

The semiconductor junction, where the light is generated, is particularly sensitive to overheating. Elevated temperatures can lead to degradation of the materials used in the LED and reduce light emission efficiency. Maintaining an appropriate temperature at the junction is therefore crucial for ensuring the declared durability of the diodes.

What heat dissipation solutions ensure durability?

To effectively dissipate heat, manufacturers use a variety of technologies, such as:

• Aluminum heat sinks – they increase the heat exchange surface area and enable quick heat removal from the LED modules.

• Thermal pastes – they improve thermal conductivity between the LED module and the heat sink.

• Active cooling systems – in more demanding applications, fans or other mechanical solutions are used to provide effective cooling.

The role of proper power supply

Power quality is equally important for the longevity of LED lighting. Voltage fluctuations, surges, or harmonic disturbances can affect the operation of diodes, leading to damage or reduced efficiency.

Impact of network disturbances on LED durability

Electrical network disturbances, such as harmonics, flicker, or surges, can negatively impact the lifespan of LED lighting. For example:

• Flicker (light flickering) – can cause power instability and accelerate degradation.

• Surges – short voltage spikes can damage the diodes and electronic components in LED drivers.

How can harmonics, flicker, and surges damage LEDs?

Harmonics generated by network disturbances increase the load on power supply systems. If the LED driver lacks proper protection, permanent diode damage may occur. Therefore, it is crucial to use high-quality drivers equipped with filters to suppress interference.

The importance of compatible components

Choosing the right components, such as radiators, thermal pastes, and fans, is key to ensuring the durability of LED lighting. Compatibility with the manufacturer's recommendations allows for optimal operation of the entire system.

Radiators, thermal pastes, and fans

Each of these components plays a crucial role in the heat dissipation system:

• Radiators enhance cooling efficiency.

• Thermal pastes eliminate air gaps between components, ensuring better heat transfer.

• Fans are used in applications requiring active cooling.

Why is selecting components compliant with the manufacturer's recommendations important?

The LED manufacturer specifies operating conditions, such as maximum junction temperature or allowable voltages. Component incompatibility can lead to ineffective cooling or diode damage, significantly reducing their durability and efficiency.

Modern LED solutions for the industry

Contemporary LED lighting designed for industrial use must meet several requirements related to high energy efficiency, durability, and resistance to harsh working conditions. In response to these needs, various LED solutions are available for demanding production, machinery, and warehouse environments. Here are some of the latest products gaining popularity in the industry:

SIRIO LED Series – Compact and Functional Fixtures

The SIRIO LED Series offers a range of fixtures characterized by excellent workmanship, compact sizes, and versatility. With various power options and lengths tailored to different needs, these fixtures are an excellent solution for diverse industrial applications.

• SIRIO LED BLM Tube Ø70 mm – This is one of the larger fixtures in the series, available in several lengths: 505 mm, 660 mm, 10160 mm, and 1465 mm. Power options include 24V DC, 48V DC, and 230V AC, allowing flexible adaptation to various industrial installations. Depending on the model, the cover is made of borosilicate glass or methacrylate, ensuring resistance to harsh working conditions.

• SIRIO LED BLS Tube Ø60 mm – A smaller version of the fixture offering similar parameters but with an even more compact design. With a diameter of 60 mm and various length options, it is an ideal solution for spaces with limited mounting area.

• SIRIO LED BLG Tube Ø50 mm – The smallest model in the series, featuring a diameter of 50 mm. The cover is made of polycarbonate, which increases resistance to mechanical damage, making it a suitable option for applications in areas exposed to shocks and impacts.

Machine Lamps by CCEA

Machine lamps by CCEA are modern solutions for demanding industrial environments. The product features a solid aluminum housing that ensures high resistance to vibrations and effective heat dissipation.

• Track Alpha – This is a surface-mounted machine lamp built with a durable aluminum housing, providing high resistance to vibrations as well as oils, coolants, and dust. Track Alpha is designed for use in the most demanding environments, such as CNC machines or automation systems. With an IP67 protection rating, these lamps perform excellently in humid and dusty conditions.

The lamp offers an intense light output of up to 6500 lumens, with a lifespan of up to 60,000 hours. Track Alpha is available in various lengths and connectors, allowing for easy installation and integration with existing lighting systems. Additionally, the lamp features great mounting flexibility and the ability to adjust the light angle, making it an exceptionally versatile solution for various industrial applications.

Advantages of Track Alpha:

o Resistant to oils, coolants, greases, and vibrations

o Long service life – up to 60,000 hours

o Energy savings – up to 50% compared to traditional solutions

o Easy and quick installation without the need for additional power supply devices

SYMRA IP69K Fixtures

Symra IP69K are luminaires with exceptional resistance to extreme external conditions, making them an ideal solution for harsh industrial environments where extreme temperatures, humidity, or dust prevail. Thanks to the IP69K protection class, these lamps are resistant to dust ingress as well as prolonged immersion in high-pressure water, making them reliable even in the most demanding conditions.

SYMRA luminaires are designed with extreme durability and reliability in mind for challenging industrial environments. With their robust construction and the use of the latest LED technologies, these luminaires offer long service life, low energy consumption, and efficient lighting. They are also easy to install and maintain, making them an ideal solution for companies seeking reliable lighting in harsh conditions.

Advantages of SYMRA IP69K luminaires:

• High resistance to water, dust, and high pressure

• Long-lasting, energy-efficient operation

• Excellent light performance and high durability

We also offer LED luminaires designed for use in areas where there is a potentially explosive atmosphere caused by the presence of flammable gases or dusts. These are lamps that combine several methods of protection to reduce the risk of a spark initiating an explosion, thereby keeping the level of safety on the installation above the minimum required. They are all ATEX certified.

How to choose the right LED lighting?

Choosing the right LED lighting for an industrial facility is crucial to ensuring energy efficiency, maintaining lighting durability, and improving working conditions. It is important to consider several key aspects that impact the effectiveness and reliability of lighting systems.

1. Durability and reliability of LED lighting – The first step in selecting lighting is to check the parameters related to the durability of light sources. Testing LEDs and understanding the factors that affect their longevity, such as operating temperature, power quality, or proper heat management, are the foundation for ensuring long-lasting and efficient operation. It is important that the lighting is resistant to voltage fluctuations, surges, and other disturbances that can negatively affect its performance.

2. Optimal heat management – Proper heat dissipation from LED diodes is one of the key factors affecting their durability. High temperatures can lead to light flux degradation and shorten the lifespan of the lighting. Therefore, it is worth choosing solutions that offer efficient heat sinks, thermal paste, or fans. Selecting components compliant with the manufacturer’s recommendations ensures maximum efficiency and system safety.

3. Modern LED solutions dedicated to the industry – Industrial LED lighting is not only energy-efficient but also highly resistant to harsh environmental conditions, such as humidity, dust, oils, or vibrations. Products like Track Alpha or SYMRA IP69K ensure reliability in extreme conditions. They are shock-resistant, offer long durability, and are simple to install and maintain. It is therefore worth choosing products that offer high quality, are resistant to external factors, and are tailored to the specific needs of a given facility.

4. Energy efficiency – Energy savings are one of the main advantages of LED technology. By selecting the right LED lighting, significant operational cost reductions can be achieved. Products that offer long-lasting, energy-efficient lighting, such as the SIRIO LED series, can help reduce energy consumption and lower lighting-related costs.

5. Adaptation to the facility's requirements – Each industrial facility has specific lighting requirements. Therefore, it is important to choose luminaires that best meet the needs of the particular work environment. The lighting should be appropriately adjusted to the size of the rooms, the type of work, and technical conditions such as humidity or the presence of chemicals.

Summary

Choosing the right lighting LED for an industrial facility is an investment that ensures benefits both in terms of energy savings and efficiency. It is essential to consider factors such as durability, resistance to harsh conditions, energy efficiency, and proper installation. Modern LED solutions, such as those offered by companies like DACPOL, are capable of meeting the demands of contemporary industrial facilities, providing optimal lighting that enhances safety and work comfort.