What is the Advantage and Disadvantage of COB LED

Author: Heather

Jul. 28, 2025

COB LED - What It Is? Is It Better?

What is a COB LED?

Getian supply professional and honest service.

How Long Do COB LEDs Last?

When Using Battery Power, Why are COB LEDs So Important?

What are the Differences between Normal Led and COB LED?

Differences between COB LEDs and SMD LEDs

Why Choose the COB LED?

The Advantages and Disadvantages of COB LED

Multiple Uses of COB LED

Conclusion





LED lights are continually being upgraded to increase their usability, adaptability, and energy efficiency. When compared to standard incandescent lights, LED lights are extremely popular since they may last up to 25 times longer while using less power.

COB and SMD LED lights are two types of LED lights available, which are the two primary sources of light these days. Both of these components create high-quality illumination and have a lengthy life expectancy, as well as the highest efficiency to date.

In this case, we will talk about COB LEDs, which are the latest in the LED industry and provide a number of advantages over the previous options.

What is a COB LED?

One of the most recent developments in the world of LEDs is "Chip on Board" (COB) technology. When contrasted to other standards, we can consider it quite recent and innovative.

COB lights are made up of an arrangement of LED chips that are tightly packed and attached to a silicon carbide base. As a result, one huge LED chip with outstanding illumination uniformity is created, making it perfect for many professionals such as filmmakers and photographers.

Generally, COB chips feature nine or even more diodes. Irrespective of the number of diodes, COB chips only have two contacts and one circuit. On a big chip, this can result in more powerful lighting of up to 250 lumens (at 20mA). The panel-like aspect of COB LED lights is due to the chip's basic circuit design.

COB LED lights, unlike SMD LED lights, cannot be utilized to make color-changing lamps or lights. That is due to the fact that there are only two contacts and one circuit. To achieve the color-changing illusion, several modification channels are needed. COB LED lights are hence effective in single-color applications.

How Long Do COB LEDs Last?

The longevity of a COB LED is determined by how they are used as well as how much heat they are exposed to. A COB LED has an average rated lifetime of 50,000 hours. That is assuming a person uses them for 12 hours a day on average.

When Using Battery Power, Why are COB LEDs So Important?

There has always been a trade-off between both the amount of high-quality lumen output (brightness) and the duration of runtime through battery operation when building a battery-powered lighting system. If you utilize the same size battery, the more high-quality illumination you want, the shorter the runtime will be. That has become considerably less of a concern with the emergence of COB LED tech.

COB LEDs with little power can produce exceedingly high-quality, ultra-bright light. As a consequence, a COB LED-based lighting system may be powered for extended periods of time using a relatively tiny and lightweight lithium-ion battery pack.

What are the Differences between Normal Led and COB LED?

To begin, a basic understanding of Surface-Mounted Device (SMD) LEDs is required. They are by far the most widely used LEDs on the market today. The LED chip is firmly fused to a printed circuit board and is widely utilized due to its adaptability, even in the notification light on the smartphone. The amount of diodes and contacts on SMD LED chips is one of their most distinguishing features.

More than two contacts are possible on SMD LED chips. On a single chip, up to three diodes can be found, each with its own circuit. An anode and cathode would be used in each circuit, resulting in 2, 4, or 6 connections on a chip.

Differences between COB LEDs and SMD LEDs

SMD LED chips can include up to three diodes on a single chip, each with its own circuit. In a chip of this type, each circuitry contains a single anode and one cathode, resulting in 2, 4, or 6 connections. COB chips typically have nine or even more diodes. Furthermore, irrespective of the number of diodes, COB chips have two contacts and one circuit. COB LED lights have a panel-like appearance, whereas SMD LED lights would seem like a collection of smaller lights due to this straightforward circuit design.

The SMD LED chip could have a red, green, and blue diode. By employing those three diodes, you can generate any hue simply by altering the output level. But there are just two contacts and one circuitry on COB LED lights. They can't be utilized to create color-changing lights or bulbs. To achieve the color-changing appearance, multiple channel modifications are needed. As a result, COB LED lights are effective in single-color applications but not in multi-color uses.

The luminosity of SMD chips is well known, and they may generate 50 to 100 lumens per watt. COB is noted for its high heat efficiency and lumens per watt ratio. With a minimum number of 80 lumens per watt, COB chips could emit more lumens with less power. It can be found in a variety of bulbs and applications, such as a point-and-shoot camera or your 's flash.

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In SMD LED chips, a smaller current capacity is necessary; however, in COB LED chips, a large current capacity external energy source is needed.

Why Choose the COB LED?

COB LED lights, as a basic guideline, are higher-quality light emitters. This is due to the fact that they use reflectors to create concentrated and regulated light. They also lack the frosted lens that comes standard with SMD LED lights.

COB LEDs are a higher-end LED that has a more structural look. In case you intend to live with your LED bulbs for a long time, a COB is a way to go; if you are located in an investment property, SMD will suffice.

You should expect brighter, clearer lighting. COB LED lights, for example, are useful in high-ceiling areas.

The Advantages and Disadvantages of COB LED

Advantages of COB LED

  1. * Because of the multi-diode incorporation, there is a lot of light.
  2. * It produces more lumens while using less energy.
  3. * Due to the limited light emission zone, the device is small in size. As a consequence, the lumen per square centimeter/inch has grown significantly.
  4. * To active the many diode chips housed in COB LEDs, a single circuitry with only two connections is used. As a result, there are fewer parts per LED chip that are necessary for proper performance. Furthermore, by reducing the number of components and eliminating the standard LED chip architecture packing, the heat created by each LED chip can be decreased.
  5. * Due to the extreme ease of installation in an outside heat sink, the entire temperature range of the entire assembly is lower. When you keep things at a set temperature, they last longer and are more reliable, which saves you money.
  6. * Clarity is improved, and efficiency is boosted.
  7. * Since it can cover a big area with one chip, it has a huge focusing area.
  8. * Excellent anti-vibration properties

Disadvantages of COB LED

  1. * A well-engineered outside power source. That occurs since it requires a steady current and voltage to avoid damaging the diodes.
  2. * A well-designed heat sink is very important. If the heating element is not properly placed, the diode will be destroyed due to overheating. Due to the highly focused light waves emitted from a limited area, a considerable amount of heat is created.
  3. * Lighting fixtures with cob chips have a lower repairability. That is because in case one of the solitary diodes in a COB is damaged as a result of a mechanical malfunction, the entire COB led must be substituted with a newer one. In the case of SMD LED, however, if one fails, it is simple to change it and get it back to operate at a lower cost.
  4. * Color selection is limited.
  5. * More expensive than SMD chips.

Multiple Uses of COB LED

COB LEDs have a wide range of applications, extending from residential to industrial utility, with some of them being:

  1. * COB LEDs would be used primarily as solid-state lighting (SSL) substitutes for metal-halide bulbs in street lighting, high-bay lighting, downlights, and high-output track lights.
  2. * They are useful in LED lighting fixtures for placement in living rooms and huge halls because of their wide-angle beam.
  3. * High lumens at night time are required in spaces such as a playground, gardens, or a large stadium.
  4. * Additional applications incorporate basic lighting for passageways and corridors, fluorescent lighting replacement, LED lamps, light strips, smartphone camera flash, and so on.

Conclusion

COB LEDs are becoming more popular in lighting applications as designers discover the advantages of employing them over typical standard LEDs. It's difficult not to take into account them for any led light application structure because of:

  1. * Their ability to cram more LED sources into a smaller area, resulting in higher lumen output
  2. * Their ability to transmit heat to a heat sink more efficiently
  3. * Their wider field of view
  4. * Their lower light loss
  5. * Their lower failure rates are due to their more straightforward construction

COB LEDs are the most recent and advanced tech available today. Simply said, they are brighter, use less electricity, and provide a higher-quality beam of light than previous LED technology now used in most trade show illumination.

Are COB LED strips good? What are the advantages and ...

COB LED strip lights are a reliable and creative way to illuminate any space. Light strips are commonly used in various environments such as landscape lighting, playground lighting, carnival lighting, commercial lighting, home lighting, architectural lighting, cabinet lighting, homes, businesses and commercial properties. COB LED strips, also known as pointless LED strips, are particularly interesting because of their continuous line of lighting without hot spots. Let’s take a closer look at COB LED light strips, shall we? What are the advantages and disadvantages?Are COB LED strips good? 

In this guide:

1.Are COB LED strips good?

2.What are the advantages of COB LED strips?

3.What are the disadvantages of COB LED strips?

4.Reliable COB LED Strips Suppliers

What is a COB light strip?

COB light strip is an LED light strip manufactured using COB (Chip on Board) technology. COB technology integrates multiple LED chips on a substrate and realizes the connection between lamp beads through connecting lines, thereby achieving high brightness, High uniformity and high energy efficiency. This makes COB light strips have higher brightness and better color reproduction, and are more energy-saving than traditional LED light strips.

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What are the advantages of COB LED strips?

The brightness of COB light strips is very high. One meter of COB light strips can reach a brightness of more than 2,000 lumens, which is enough to meet the lighting needs of many large commercial and industrial places. At the same time, COB light strips also have a wider range of use scenarios and can be used in home lighting, commercial lighting, indoor and outdoor lighting and other occasions.

COB light strips also have excellent color reproduction, allowing people to see more realistic and natural colors. The color temperature range of COB light strips is also very wide. You can choose the color temperature suitable for different occasions, such as warm white (K-K), natural white (K-K) and cool white (K-K).

In addition, COB light strips also have better uniformity and anti-interference. Due to its high chip density, the light is more uniform and there will be no "dots forming lines". During use, COB light strips are also more resistant to interference and more sensitive to changes in voltage, current and other factors.

What are the disadvantages of COB LED strips?

The disadvantage of COB light strips is that the price is relatively high, and due to the high chip density, their product prices are usually more expensive than traditional LED light strips.

Larger heat: Due to the large number of COB lamp bead chips, the heat generated is also relatively large. If there is no heat dissipation design, it will affect the life of the product.

Susceptible to voltage fluctuations: Each LED chip in a COB lamp requires stable current and voltage. If the power supply is unstable, it will have an adverse impact on brightness and lifespan.

Taken together, COB light strips have some advantages and disadvantages compared to traditional LED light strips. Although the price is relatively high, COB light strips are still irreplaceable in high-demand lighting needs such as commercial and industrial places. lighting solutions.

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