In the field of modern lighting, high-power COB LED has become an ideal choice for many lighting applications.

This article will introduce the definition, advantages, purchase and usage instructions, and future trends of high-power COB LEDs.

1. What is a high-power COB LED?

COB means Chip on Board, which is an advanced LED packaging technology.

Unlike SMD LED, which first packages the chip into a single LED bead and then welds the bead onto the PCB board, COB LED integrates dozens or even hundreds of LED chips directly onto the PCB board to form a single lighting module.

This design reduces the process of independent packaging and reassembly of each chip in traditional LEDs, achieving direct integration between the chip and the substrate.

When current passes through, all chips work together to emit uniform and strong light, solving the problems of glare, graininess, and  dot shaped luminescence.

By selecting different optical lenses or reflectors, we can adjust the beam angle of high-power COB LEDs to meet the needs of different lighting scenarios. Its usage scenarios include shopping malls, factories, sports venues, hospitals, stages, car headlights and so on.

2. Five core advantages of high-power COB LED

2.1. Excellent Light Quality: Uniform luminescence & Realistic Colors

No glare or flicker: The light emitted by COB belongs to the surface light source, with uniform and soft light distribution, reducing the occurrence of light spots and dark areas, especially suitable for sensitive environments such as children's rooms, schools, hospitals, etc., providing a more comfortable visual experience.

High Color Rendering Index (CRI): The color rendering index of high-quality COB light sources can reach Ra90 or above, which can significantly reduce eye fatigue and accurately restore the true color of objects.

Color temperature consistency: The integrated packaging process ensures that all chips emit light of a uniform color temperature, solving the problem of color difference that is difficult to avoid when multiple LEDs are combined.

2.2. Super strong heat dissipation: The lifespan is generally over 30000 hours

The heat dissipation efficiency of COB is more than three times that of traditional LED:

Expanded heat dissipation area: The chip is directly attached to a high thermal conductivity metal substrate, with a shorter heat transfer path and significantly reduced thermal resistance.

Reduce light decay and extend lifespan: Good heat dissipation design effectively reduces chip temperature, thereby slowing down the speed of light decay. Theoretically, high-power COB LED’s lifespan exceeds 30000 hours (calculated at 8 hours per day, which can last for more than 10 years), with lower frequency of lamp replacement and maintenance, and lower long-term usage costs.

2.3. Energy saving and efficient: Improve light efficiency by 30%

Compared to traditional LED light sources, high-power COB LEDs can emit more light while consuming the same amount of electricity. In lighting design, fewer lamps can be used to meet lighting needs, thereby reducing the overall cost of the lighting system.

2.4. Compact structure and flexible design

Simplified production: A lamp only requires one COB to achieve full illumination coverage.

Compact size: Suitable for high space demanding scenarios such as tube lights, spotlights, and track lights, giving designers greater freedom.

2.5. High reliability & high adaptability

Shock and impact resistance: The resin fully covers the encapsulated protection chip, with no vulnerable parts.

Low failure rate: Traditional LED lights can have dozens of solder joints when combined with multiple pieces, while COB only requires a small number of solder joints, reducing the risk of lamp failure.

Outdoor adaptability: The packaging material of high-power COB LED usually has good protective performance and can provide long-term stable lighting services for people in outdoor landscape, street lamp and other applications.

3. Key parameter guide for purchasing high-power COB LED

▶According to different usage scenarios, the parameter indicators for purchasing high-power COB LEDs mainly include the following: luminous flux, power, luminous efficiency, emission angle, color rendering index, color temperature, etc.

Industrial lighting may place greater emphasis on high brightness and uniformity, while commercial lighting, in addition to high brightness, also has higher requirements for color rendering index to ensure better reproduction of products’ color.

For example, our 45*45 High Power COB LED has a power of 300W, and the IR COB LED has a power of 30W, which can be used for medical endoscopes, monitoring, flashlights, stage lights, agriculture, and other purposes.

If you have other needs or any doubts, we also provide customized services and are very happy to answer you.

4. Instructions for using high-power COB LED

4.1. Correct installation method

4.1.1. Follow the installation instructions

When installing high-power COB LED lamps, it is necessary to strictly follow the installation instructions of the product. Different brands and models of lamps may have different installation methods and requirements. Improper installation may affect the performance and service life of the lamps, and even pose safety hazards.

4.1.2. Ensure good heat dissipation conditions

During installation, ensure that there is sufficient space around the lighting fixtures so that heat can dissipate smoothly.

Avoid installing lighting fixtures in enclosed spaces or near flammable materials, while ensuring good heat exchange conditions between the heat dissipation fins or devices and the surrounding environment.

4.2. Reasonable selection of driving power supply

When selecting a driving power supply, attention should be paid to its output voltage range, output current, power factor, and other parameters to ensure consistency with the requirements of high-power COB LEDs.

4.3. Good usage habits

Avoid frequent switching of power supplies, as this can easily cause current surges.

It is recommended to switch power supplies at intervals greater than 30 seconds.

4.4. Regular maintenance and inspection

4.4.1. Cleaning Lighting Fixtures

Regularly clean high-power COB LED lights to remove dust and dirt from the surface, ensuring the transparency and heat dissipation performance of the lights.

When cleaning, the power should be turned off first. After the lamp cools down, use a clean damp cloth and specialized lamp cleaner to clean it. Be careful not to let the cleaner enter the interior of the lamp.

4.4.2. Regularly check the status of lighting fixtures

Regularly check the working status of the lighting fixtures and observe for any abnormal brightness, flickering, color changes, and other issues.

♦ If there is a significant decrease in the brightness of the lighting fixtures, it may be due to chip aging, poor heat dissipation, or driver power failure;

♦ If flickering occurs, it may be due to unstable driving power supply, poor circuit contact, or quality issues with the LED chip;

♦ The color change may be related to the light decay of the LED chip, high temperature, or abnormal current and voltage of the driving power supply.

If a malfunction is found in the lighting fixture, it should be repaired or replaced in a timely manner to avoid affecting the lighting effect.

5. Future trend: COB technology drives innovation in lighting and display

COB has surpassed basic lighting and expanded to Mini/Micro LED, with the potential to further reduce costs in the future

♥  Mini LED backlight: used for VR headsets to achieve thousand level zone light control, solve the screen effect, and achieve a refresh rate of 120Hz.

♥  Micro LED direct display: COB packaging becomes the core technology of ultra small pitch display screens, providing cinema grade picture quality.

♥  Integrated light engine: In the future, COB may integrate power drivers to form plug and play modules, accelerating lighting standardization.

6. Conclusion: Choose COB——the efficient and reliable future light

High power COB LED is reshaping the commercial and home lighting ecosystem with its triple advantages of high uniformity, narrow beam, and high luminous efficiency.

With the continuous advancement of technology and further cost reduction, it is believed that high-power COB LEDs will be widely used in more fields, bringing new changes and developments to the lighting industry.

If you have any need or advice, please feel free to contact us! 

Our related products:

300W COB 45x45 High Power LED Stage Light Source Projectors Diode

IR COB LED 30W 940NM 10-14V 2A 40x36MM

We also provide customization service! Contact us!