COB LED - What It Is? Is It Better?

What is a COB LED?

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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.

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

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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.

In the LED strip industry, Chip-on-Board (COB) strips are prized for their high brightness and uniformity, but they also have some disadvantages that limit their use in certain contexts. Here are some of their drawbacks:

1. High Heat Production

The problem of overheating COB strips it is due to their particular structure. These strips integrate several LED chips into a small packaging module. This high density of LED chips in a limited area generates a considerable amount of heat when the LEDs are turned on. Additionally, COB strips usually use a high current to power the LED chips, further increasing heat production.

High heat production can result in an increase in the temperature of light fixtures, requiring additional cooling measures to ensure the stability and lifespan of the lights. Light equipment manufacturers often design cooling structures, such as heat sinks and fans, around COB strips to improve cooling. This need for additional cooling increases the complexity of device design and manufacturing, as well as increasing manufacturing costs.

The high level of heat generated by COB strips also raises questions about environmental safety, especially in applications where lights are left on for long periods. High temperatures can reduce the life of the LED strips and potentially create security risks. Therefore, to ensure user safety, equipment manufacturers often implement measures such as installing temperature control devices, further increasing production costs.

2. High costs

COB strips have higher production costs for two main reasons. First, their production requires more precise manufacturing processes and additional materials than traditional LED strips. The technical complexity of COB strips requires more accurate manufacturing processes, increasing production costs. Furthermore, COB strips integrate a large number of LED chips, which are high-performance components with inherently high manufacturing costs.

These higher costs make COB strips more expensive than traditional SMD (Surface Mount Device) LED strips. Compared to conventional SMD LED strips, COB strips appear significantly more expensive. This can pose a challenge for consumers on a budget and for some cost-sensitive commercial projects.

COB strips also have a relatively low competitive position in the market due to their high costs. In industries such as large-scale home and commercial lighting, cost is often a key factor in product selection by businesses and consumers. Therefore, although COB strips offer high brightness and uniformity, their higher price limits their market share. This drives manufacturers to constantly look for ways to reduce production costs while improving product quality. This challenge requires continuous efforts in technological research and production management.

Furthermore, due to the higher costs of COB strips, some cheaper and price-sensitive market sectors often prefer traditional LED strips or other light sources. This further limits the application of COB strips in these areas.

3. Bulky dimensions

The format of the COB makes it difficult to use in some smaller lighting applications. For example, in automotive applications, space is often limited and requires more compact light sources to accommodate complex lighting structures. Due to the size of COB strips, it is difficult to meet these miniaturization requirements. Likewise, in applications such as outdoor advertising signs, signal lights and decorative lighting, where particular aesthetic and size designs are required, COB strips may not be suitable, impacting their market share and application diversification.

Additionally, the larger size of COB strips limits their installation flexibility in specific scenarios. In complex lighting designs that require installation in tight spaces, curves or particular shapes, the bulky dimensions of COB strips can complicate installation and, in some cases, not meet design requirements. In contrast, smaller LED strips can be cut and bent more easily to fit a variety of custom configurations, thus increasing their popularity in the DIY project market.

Can it be Appropriate to Use COB LED Strips in a Bedroom?

Considering the disadvantages of COB LED strips mentioned in the previous article, especially in bedroom lighting application, one can

Although COB LED strips offer advantages such as high brightness and uniformity, they are not necessarily the best choice for bedroom light strips. light strip for bedroom the best choice.
Here because:

the following conclusion:

While COB LED strips have advantages such as high brightness and uniformity, they are not necessarily the best choice for lighting a bedroom or similar space. Here are the reasons:

1. Problems with Light Temperature: Bedrooms require a soft and comfortable lighting atmosphere. COB LED strips, due to their high power density, could produce a high light temperature. This could cause eye discomfort and discomfort, affecting the quality of your sleep.

2. Security Issues: Due to the high power density of COB LED strips, prolonged use can generate significant amounts of heat, increasing the risk of electrical accidents and fires. In bedrooms, where safety is paramount, it is better to opt for products with a lower power density which are safer and more reliable.

3. Color Reproduction Issues: Correct color reproduction is essential in bedrooms, especially when carrying out tasks such as applying makeup or selecting clothing. COB LED strips may have color distortion or non-uniformity issues due to light sources and optical design, which may adversely affect the viewing experience.

Accordingly, for bedroom lighting, it is advisable to opt for LED strips with a lower power density, good color reproduction and a high level of safety. These products often offer softer and more comfortable lighting, while ensuring safety and accuracy in color reproduction, thus helping to create a welcoming and comfortable environment in the bedroom. When choosing LED strips, it is always advisable to consider personal needs, the characteristics of the space and safety requirements, thus choosing the LED strips best suited to your needs.

In conclusion, the larger size of COB strips limits their application in smaller lighting products and in certain situations. Although COB strips offer high brightness and uniformity, their size is an obstacle that prevents them from meeting some specific needs. However, as technology advances, it is likely that the size issue of COB strips will be resolved, thus opening up new possibilities for their application in a wider range of contexts.