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Comprehensive Guide: FAQs about COB LED Strip Lights

Jun 26,2024 | Muzata LED Channel

Comprehensive Guide: FAQs about COB LED Strip Lights

COB LED strips (Chip on Board) are an advanced lighting technology known for their high brightness, uniform light output, and long lifespan. This article will delve into the construction, applications, installation methods, and differences between COB LED strips and traditional LED strips, helping you fully understand this modern lighting solution.

1. What is a COB LED strip?

COB LED strip lights are a type of strip light that integrates multiple LED chips. Unlike traditional SMD LED strips, COB strips form a single, cohesive light source by mounting multiple LED chips directly onto the substrate. This design increases light density, resulting in more uniform and softer light output.

2. Uses of COB Strips

COB strips find extensive application across various settings, including:

  • Home Lighting

Enhancing kitchens, living rooms, and bedrooms.

Home Lighting: Enhancing kitchens, living rooms, and bedrooms.

  • Commercial Lighting

Illuminating stores, restaurants, and offices.

Commercial Lighting: Illuminating stores, restaurants, and offices.

  • Display Case Lighting

Showcasing products with high-quality illumination.

Display Case Lighting: Showcasing products with high-quality illumination.

  • Background Wall Lighting

Creating ambiance and decoration in diverse spaces.

Background Wall Lighting: Creating ambiance and decoration in diverse spaces.

Their versatility makes COB LED strips a preferred choice for both residential and commercial lighting needs.

Through the multitude of applications in various settings, it's clear that COB LED strips generally emit warm, yellowish light. So, why do COB LEDs appear yellow? 

2. Why Are COB LEDs Yellow?

The yellow appearance of COB LEDs when unpowered is due to the color of the encapsulation gel and phosphor. This unique characteristic is inherent to their design and does not impact performance. is an integral part of COB LEDs. It ensures consistent, warm-toned light output across various applications, making them a preferred choice for creating inviting and comfortable environments.

To fully understand why COB LEDs exhibit this characteristic and their superior performance, let's delve into what makes up a COB strip.

3. What’s inside a COB strip?

COB LED strips consist of the following components:


Usually made of aluminum, which helps with heat dissipation.

LED Chips

Multiple small LED chips are arranged closely together.


Coating the LED chips to adjust the light color.

Encapsulation Gel

Protects the LED chips and further assists with heat dissipation.

details about cob led strips

This structural design gives COB LED strips significant advantages in terms of brightness and uniformity. The lowest brightness COB strip on the market is about 500 lumens per meter, suitable for low-brightness environments like decorative lighting. In contrast, high-brightness COB strips can reach 2000 lumens per meter, ideal for areas requiring high-intensity lighting.

Understanding the components of COB strips is crucial, but to fully appreciate their capabilities, it's important to delve deeper into how the strategic positioning of these LED chips enhances their performance and ensures a superior light output

4. Positioning of LED Chips in COB Strips

In COB strips, the LED chips are evenly distributed across the entire substrate. This design eliminates the common issue of light spots in traditional LED strips, resulting in smoother and more even light output. This uniform light is particularly important for high-quality lighting applications, such as photography lighting and high-end interior lighting. The unparalleled uniform light source makes COB strips the preferred choice in these professional fields.

With an understanding of how COB strips achieve their seamless light distribution, it's equally important to consider how to power these strips effectively to maintain their performance.

5. 12V COB LED Strips & Best Power Supply Methods

12V COB LED Strips & Best Power Supply Methods

Understanding the importance of choosing the right power supply is crucial for ensuring the optimal performance of your COB LED strips. Among the various options available, 12V COB LED strips stand out as a popular low-voltage lighting solution. They offer easy installation and high safety, connecting directly to a 12V power source without the need for additional drivers. This makes them suitable for various applications such as automotive lighting, marine lighting, and outdoor camping lights.

When powering multiple COB strips, it's essential to select the appropriate power supply to maintain their performance and longevity. A high-power LED power supply is recommended, with each strip having an independent power connection. Parallel connection is the most effective method as it avoids voltage drop issues that can cause uneven brightness. For instance, if each COB strip has a power rating of 10W and you have five strips, the total power requirement would be 50W. Choosing at least a 60W power supply ensures stability and reliable operation. This method extends the lifespan of your strips, making your lighting design more durable and efficient.

With a reliable power supply in place, you can then explore more creative ways to install these strips, such as bending them to fit specific design requirements.

Once you have a reliable power supply in place, you might want to explore more creative ways to install these strips, such as bending them to fit specific design requirements.

6. How to Bend COB Strips to 90 Degrees

COB strips have a certain level of flexibility, but care must be taken when bending to avoid damaging the LED chips. There are two common methods to achieve a 90-degree bend:

Using Specialized Connectors: There are connectors on the market designed for connecting and bending strips, which can help achieve a 90-degree turn. These connectors are cleverly designed, easy to use, and ideal tools for complex lighting designs.

Cutting and Reconnecting: Cut the strip to the required length and reconnect it using soldering or specialized connectors. Although this method requires some skill and tools, it allows for more flexible lighting layouts to meet diverse design needs.

With these techniques, you can create versatile and unique lighting setups. One popular application of COB strips is in ceiling installations, which can transform the ambiance of any room.

7. How Effective Are COB Strips Installed on Ceilings?

Ceiling lighting design is always a focal point, and COB strips installed on ceilings are a popular choice among them. COB strips not only feature high brightness and uniform light output but also bring a new visual experience to indoor environments.

Installing COB strips on ceilings can provide extremely uniform lighting effects. The high light density and even light output result in smoother light distribution, reducing shadows and hot spots. This soft ambient light enhances the overall lighting quality and creates a warm and comfortable atmosphere.

Imagine a warm evening when you are lying on the sofa, and COB strips installed on the ceiling emit soft light that fills the entire room without any glaring spots or shadows, only tranquility, and comfort. This lighting effect not only beautifies your home environment but also adds a sense of ease and joy to your daily life.

The uniform light effect and high brightness of COB strips make them highly praised for ceiling installations. Whether used in residential spaces like living rooms and bedrooms or commercial spaces like offices and meeting rooms, COB strips provide excellent lighting effects, illuminating every corner with brilliance. This unmatched lighting experience allows every user to feel the beauty that technology brings to life.

8. Do COB LED Strips Need Diffusers and Are They Waterproof?

cob led strip with different channels COB LED Strips Need Diffusers

As we've seen, the versatility of COB strips extends beyond mere aesthetics, making them a top choice for both residential and commercial applications. However, certain accessories and modifications can be beneficial to further enhance their performance.

Although COB strips have very uniform light output, using a diffuser can further soften the light, eliminating any potential hot spots and enhancing light quality. For high-quality lighting applications, such as display case lighting and home theaters, LED channel diffusers are highly recommended. They ensure that the light is distributed evenly and smoothly, providing a superior visual experience.

9. COB LED Strip Lifespan

Another critical aspect to consider when choosing COB LED strips is their lifespan. The typical lifespan of COB LED strips ranges from 30,000 to 50,000 hours. Key factors affecting lifespan include the usage environment and heat dissipation conditions. High-quality COB strips, with good heat dissipation and proper usage, can last even beyond 50,000 hours. This means that if used for 8 hours a day, they can last nearly 17 years. Such longevity makes them an excellent investment for both residential and commercial lighting needs.


COB LED strips, with their efficient, uniform lighting effect and long lifespan, have become a popular choice in modern lighting design. Whether for home renovation or commercial applications, COB strips offer excellent light output and durability. If you're looking for high-quality LED strips, consider COB LED strips. I hope this article has helped you better understand COB LED strips. If you have any questions or need more information, please feel free to contact me!






Amy Davis

Amy Davis

June 19, 2024

Lighting and interior designer with many years of rich experience in space design. Specializes in creating holistic environments that optimize visual comfort, functionality and pleasure through lighting technology and theory, space planning and color coordination. Specializing in human-centered design, weaving together artistry, practicality and sustainability to create a unique and livable atmosphere.

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