Shenzhen Ledodm Lighting Co., Ltd

LED Strip Blog

What is COB led strip light?

  A COB LED strip light refers to a type of LED strip that uses chips based on COB (Chip on Board) technology. COB technology involves directly mounting multiple LED chips onto a single substrate to create a high-density LED array. These chips are smaller and more closely packed compared to traditional SMD (Surface Mount Device) LEDs. COB LED strip lights can provide a high level of brightness and emit uniform lighting due to the compact arrangement of LED chips. They are known for their energy efficiency, long lifespan, and versatility in various lighting applications.


COB LED strip lights come in various types, each with its own characteristics and features. 

    1. Single-Color COB LED Strip Lights: These strips contain COB LEDs that emit light in a single color, such as white, cool white, warm white, red, green, blue, or yellow. They are often used for task lighting, accent lighting, or decorative purposes.

    2. RGB COB LED Strip Lights: These strips feature COB LEDs that can emit red, green, and blue light independently, allowing for the creation of a wide range of colors. RGB COB LED strips are commonly used for decorative lighting, mood lighting, or special effects in entertainment areas.

    3. RGBW COB LED Strip Lights: Similar to RGB strips, RGBW COB LED strips also have red, green, and blue LEDs. In addition, they include a separate white LED, which allows for pure white lighting in addition to a wide array of colors. RGBW COB LED strips are ideal for applications where both colored and white lighting is desired.

    4. Tunable White COB LED Strip Lights: These strips combine warm white LEDs and cool white LEDs on a single chip. By adjusting the intensity of each LED, tunable white COB LED strips can achieve a range of color temperatures, from warm white (2700K) to cool white (6500K). They are commonly used for applications that require adjustable lighting for different moods or tasks.


What is Single-color COB LED strip lights?

    Single-color COB LED strip lights are a type of LED lighting product that features Chip-on-Board (COB) technology. COB technology allows for multiple LED chips to be packaged closely together to form a single lighting source.

    In the case of single-color COB LED strip lights, all the LED chips on the strip are of the same color, typically either white, red, green, blue, or a specific color temperature of white light. This means that the entire strip will emit light in the same color without the ability to change colors like RGB (red, green, blue) LED strips.

    Single-color COB LED strip lights are often used for accent lighting, task lighting, and general illumination purposes. They can be installed in various indoor and outdoor settings to create a consistent and uniform lighting effect in a single color.

What is RGB COB LED strip lights?

    RGB COB LED strip lights are a type of LED lighting product that features Chip-on-Board (COB) technology and allows you to change the color of the light. RGB stands for red, green, and blue, which are the primary colors used to create any color in the RGB color space. Unlike single-color COB LED strip lights, RGB COB LED strip lights have multiple LED chips of different colors on the same strip that can be controlled independently using a controller.

    By adjusting the intensity of the red, green, and blue LEDs, RGB COB LED strip lights can produce a wide range of colors and color-changing effects. They can be used for decorative lighting, entertainment lighting, stage lighting, and more. With the help of the controller, you can choose the desired color, adjust the brightness, and create dynamic lighting effects.

    It's worth noting that while RGB COB LED strip lights can produce a vast array of colors, they may not be suitable for applications that require high-quality, accurate color rendering since the RGB color mixing method may not accurately match all colors.


What is RGBW COB LED strip lights?

    RGBW COB LED strip lights are similar to RGB COB LED strip lights but with an added white LED chip. "RGBW" stands for red, green, blue, and white. This additional white LED allows for a wider range of color options and provides the capability to produce true white light.

    With RGBW COB LED strip lights, you can control each color (red, green, blue, and white) independently using a controller. This means you can create various colors by combining different intensities of these four colors. Additionally, you have the option to use the white LED chip alone to produce pure white light, which can be useful for general illumination purposes.

    RGBW COB LED strip lights are popular for applications where accurate color rendering is important, such as architectural lighting, photography, and commercial settings. They offer versatility in terms of color options, allowing you to create dynamic lighting effects and also providing the option for effective white lighting when needed.

What is Tunable White COB LED strip lights?

    Tunable White COB LED strip lights are LED light strips that use Chip On Board (COB) technology to provide adjustable white light. COB technology is a type of LED packaging that allows multiple LED chips to be placed very close together, creating a more intense light source with better color mixing capabilities.

    Tunable White COB LED strip lights allow you to adjust the color temperature of the light from warm white to cool white. This can be done through a remote control or smartphone app, giving you the ability to customize the lighting ambience in a room or workspace.

    These LED strip lights are a great option for anyone looking for versatile lighting solutions that can create different moods and enhance productivity in a variety of settings. They are commonly used in residential and commercial settings, such as offices, restaurants, and retail spaces.

what is Waterproof COB Led Strip Light

Waterproof COB LED strip lights are a type of lighting product that features COB (Chip-on-Board) LED technology and are designed to be resistant to water and moisture. COB refers to the method in which multiple LED chips are packaged closely together on a single board, resulting in a high-density and powerful light output.

Waterproof COB LED strip lights are specifically designed for outdoor or damp environments where they may be exposed to water or humidity. They typically have a protective coating or casing, such as a silicone or resin material, that shields the LEDs from moisture and prevents damage or malfunction.

These strip lights are commonly used for various outdoor lighting applications, such as architectural accents, landscape lighting, signage, pathway lighting, and more. They are popular due to their high brightness, energy efficiency, and durability. The waterproof feature ensures that the strip lights can withstand rain, splashes, and other wet conditions without being compromised.

What is RGBCCT Color COB led strip light

RGBCCT COB LED strip light refers to a type of LED strip that combines RGB (red, green, blue) color LEDs with CCT (correlated color temperature) LEDs. It offers a wider range of color options and allows for adjustable white light temperature.

Here's what each component represents:

1. RGB LEDs: These LEDs emit red, green, and blue colors individually or in combinations. By varying the intensity of each color, a wide spectrum of colors can be achieved.

2. CCT LEDs: These LEDs are capable of producing different shades of white light with adjustable color temperatures, usually ranging from warm white (2700K) to cool white (6500K) or daylight white. They allow for customization to create the desired ambiance or lighting effects.

3. COB (Chip-on-Board): COB technology involves packing multiple LED chips closely together on a single module, creating a high-density lighting source. It provides a concentrated and uniform light output, resulting in improved brightness and color mixing.

RGBCCT COB LED strip lights are often used in applications where dynamic and versatile lighting effects are desired. With the ability to control both RGB colors and white light temperatures, they offer a broader range of creative options for architectural lighting, home decor, stage lighting, or accent lighting projects.

what is High Voltage AC COB led strip light

High Voltage AC COB LED strip lights are a specific type of LED lighting product that operates on high-voltage alternating current (AC) power supply. Unlike traditional low-voltage LED strip lights that require a separate power transformer or driver to convert AC power to low-voltage DC power, high voltage AC COB LED strip lights can directly connect to the AC power source without the need for an additional driver.

COB (Chip-on-Board) technology refers to the method of packaging multiple LED chips closely together on a single board, creating a high-density light source. This technology allows for a higher lumen output and improved thermal management compared to traditional LED strip lights.

Key features of high voltage AC COB LED strip lights include:

1. Direct connection: These strip lights can be directly connected to the AC power source without a separate driver, reducing the complexity of the installation process.

2. High brightness: The COB LED chips used in these strip lights provide high luminous efficiency, resulting in bright and uniform illumination.

3. Cost-effective: The elimination of the driver component reduces the overall cost of the lighting system.

4. Long lifespan: COB LED technology offers excellent thermal management, leading to a longer lifespan for the strip lights.

It is important to note that high voltage AC COB LED strip lights require professional installation due to the higher voltage involved in the operation. Safety precautions should always be followed when working with high voltage electrical systems.

These strip lights are commonly used in various applications where a high brightness level and efficient lighting are required, such as architectural lighting, retail displays, commercial spaces, and outdoor lighting. However, it is recommended to consult with a lighting professional or supplier to determine the suitability and specific requirements of high voltage AC COB LED strip lights for your project.

COB (Chip-on-Board) LED strip lights have several advantages over traditional SMD (Surface Mount Device) LED strip lights:

1. Higher brightness: COB LED strip lights have a higher lumen output than SMD LED strip lights. This means that they produce more light from the same amount of power.

2. More uniform light: COB LED strip lights use a single chip that covers a larger area compared to SMD LED strip lights, which use multiple small chips. This results in a more even and uniform spread of light.

3. Better heat dissipation: COB LED strip lights have a larger surface area and a thicker substrate, which means that they can dissipate heat better than SMD LED strip lights. This results in a longer lifespan for the LEDs.

4. Smaller profile: COB LED strip lights can be made thinner than SMD LED strip lights, which makes them more suitable for applications where space is limited.

5. Increased flexibility: COB LED strip lights can be made with a higher density of LEDs, which allows for greater flexibility in terms of design and application.

COB LED strip lights can be purchased from a variety of online and offline retailers, as well as specialty lighting stores. 

    1. Online marketplaces like Amazon, eBay, and Alibaba have a wide variety of COB LED strip light options from various sellers.

    2. Specialty lighting stores like LEDSupply and Super Bright LEDs offer a variety of high-quality COB LED strip lights specifically designed for various applications.

    3. Home improvement stores like Home Depot, Lowe's, and Menards often carry COB LED strip lights in their lighting section.

    4. Electronic component suppliers like Digi-Key and Mouser also offer COB LED strip lights and related components for those who prefer to build their own lighting solutions.

    When purchasing COB LED strip lights, it's important to consider the technical specifications of the product, such as color temperature, brightness, and voltage compatibility, to ensure that it meets your specific lighting needs.

Where can you use the COB Strips?

    1. Residential Lighting: COB strips can be installed in homes for accent lighting, under cabinet lighting, or general illumination in rooms.

    2. Commercial Lighting: COB strips are suitable for commercial spaces such as offices, retail stores, restaurants, and hotels, where bright and energy-efficient lighting is required.

    3. Automotive Lighting: COB strips can be used in automotive applications, including interior lighting, accent lighting, and even as headlights or taillights in some cases.

    4. Signage and Display Lighting: COB strips are often utilized for backlighting signs, displays, and advertising boards, as they provide uniform and high-intensity lighting.

    5. Outdoor Lighting: With IP65 or higher waterproof rating, COB strips can be used for outdoor applications like garden lighting, pathway lighting, or highlighting architectural features.

    6. Entertainment and Stage Lighting: COB strips are popular in the entertainment industry for stage lighting, concert lighting, and other dynamic lighting effects.

    7. Industrial Lighting: COB strips are suitable for industrial environments, such as warehouses and factories, where robust and efficient lighting is needed.

    Please note that specific COB strip models may have different features, such as color temperature options or dimming capabilities, which can further expand their possible applications.

Why Choose the COB LED?

    As a general rule of thumb, COB LED lights are higher-quality light sources. That's because they use reflectors to provide focused and controlled light. In addition, they don't feature the frosted lenses that come with SMD LED lights.

    The result? You can expect cleaner and crisp light. This makes COB LED lights especially helpful in high-ceiling rooms.

    COB LED's are known as a higher-end LED which gives off more of an architectural look, if you intend on living with your LED downlights long term then look to a COB, if you are installing in an investment property then SMD will do the job.

Why is COB LED Strip so popular on market?

    1. High Brightness and Efficiency: COB LED strips have a high luminous efficacy and brightness. Multiple LED chips are placed directly on the circuit board, producing more light output per unit area than other types of LED strips.

    2. Uniform Lighting: COB LED strips provide uniform and consistent light without dark spots or uneven brightness. With high-density LED chips mounted close together, COB LED strips can create a continuous light source, which is ideal for illumination.

    3. Compact and Flexible Design: COB LED strips are small in size and can be flexible depending on the circuit board. They can be easily cut and bent to fit different shapes and sizes, making them ideal for a wide range of applications.

    4. Energy-efficient: COB LED strips use less electricity compared to traditional lighting fixtures. They are energy efficient with a low voltage and wattage requirement, reducing energy consumption and costs.

    5. Long Lifespan: COB LED strips have a long lifespan, typically lasting up to 30,000 or more hours of continuous use. This makes them ideal for applications where longevity is important, such as in commercial or industrial settings.

    6. Cost-effective: Prices of COB LED strips have become more affordable in recent years due to advancements in technology and competition in the market. This allows for cost-effective solutions for both residential and commercial lighting needs.

How can I install it?

    COB LED strips are usually more delicate, as they contain a large number of chips. For this reason, we recommend that you have them installed by a qualified professional who is used to handling them with care.

How to cut, connect and install COB LED Strip Lights?

    COB LED Light Strip has solder pads on PCB which can be cut according to your requirement. There is yellow 3M on the back of the PCB which is easy to install.

How to cut/connect/power COB FOB led strip lights

To cut and connect COB (Chip-on-Board) or FOB (Fine Oval Beam) LED strip lights, you can follow these steps:

1. Cutting the Strip:
- Measure and mark the desired length on the LED strip.
- Using sharp scissors or a knife, cut the strip carefully along the marked line. Ensure that you are cutting through the designated cutting points on the strip.


2. Connecting the Strip:
- After cutting the strip, you might need to create new connection points for power and control.
- Locate the copper pads or soldering points on the strip where you want to make the connection.
- Gently remove any protective coating or silicone layer from the copper pads to expose the metal surface.

3. Joining the Strips:
- To connect two separate LED strip pieces together, you can use either soldering or connectors specifically designed for LED strips.
- Soldering: Apply a small amount of solder to the copper pads of each strip. Then, carefully connect the corresponding pads, aligning positive with positive and negative with negative. Ensure a secure and clean solder joint.
- Connectors: Use compatible connectors designed for your specific type of LED strip. These connectors usually require cutting and stripping a small portion of the silicone casing from each strip end and inserting them into the connector. Follow the instructions provided with the connector for proper usage.

4. Powering the Strip:
- To power the LED strip, you will need a suitable power supply or LED driver.
- Determine the voltage requirements of your LED strip. It is important to use a power supply that matches the specified voltage.
- Connect the positive (+) and negative (-) terminals of the power supply to the corresponding terminals on the LED strip. Pay close attention to polarity, ensuring that positive connects to positive and negative to negative.

Always refer to the manufacturer's instructions and guidelines specific to your LED strip to ensure proper and safe installation.

How do I choose the right COB LED strip?

    When choosing a COB LED strip, consider the following factors:

Colour temperature: COB LED strips come in a range of colour temperatures, from warm white to cool white. Choose the colour temperature that best suits your needs.

Brightness: COB LED strips come in different levels of brightness. Consider the amount of light output you need for your specific application.

IP rating: If you plan to use COB LED strips in outdoor or wet environments, make sure they have a high IP rating to ensure they are waterproof and can withstand the elements.

Length: COB LED strips can be cut to length, but make sure you choose a strip that is long enough to meet your needs.

Which is better, the LED strip with or without COB?

    The answer will depend on the final aesthetic result you want to achieve: with COB LED strips, you will achieve a wraparound effect without the points of light being visible (ideal if you are working with reflective surfaces).

    However, whatever you decide, you will need to check the quality of the material, as there are LED strips of all kinds. If you opt for a lower quality strip, you run the risk of it breaking when it has to be twisted to fit the space.


Advantages of COB LEDs

COB (Chip-on-Board) LEDs have several advantages over traditional SMD (Surface Mount Device) LEDs:

1. Higher lumen output: COB LEDs can provide higher lumen output per unit area than SMD LEDs, which means they are brighter and can be used in a wider range of applications.

2. Better light quality: The COB technology allows for better color rendering and a more uniform light output without any 'hot spots', which can make them ideal for high-quality lighting applications.

3. Lower heat generation: COB LEDs generate less heat per unit area than SMD LEDs, which can help to extend the life of the LED and reduce the need for cooling systems.

4. Smaller size: COB LEDs are typically smaller in size than SMD LEDs, which can make them easier to use in smaller devices or in applications where space is limited.

5. Lower cost: COB LEDs offer a cost-effective alternative to traditional SMD LEDs, making them ideal for use in a wide range of applications, including residential and commercial lighting, automotive lighting, and more.

6. High brightness and efficiency: COB LEDs can deliver a high level of brightness with excellent efficiency, producing more light per watt of electrical power compared to traditional LED technologies. This makes them energy-efficient and can help reduce energy consumption and lower electricity costs.

7. Compact size: COB LEDs are known for their compact size. The multiple LED chips are packed closely together on a single board, allowing for a high level of integration and miniaturization. This makes COB LEDs suitable for applications with limited space or compact devices.

8. Improved heat dissipation: COB LEDs typically feature a solid substrate that helps in efficient heat dissipation. The compact design and close proximity of the LED chips allow for better thermal management, reducing the risk of overheating and extending the lifespan of the LEDs.

9. Uniform lighting: COB LEDs offer a more uniform light output and better color mixing compared to other LED technologies. The multiple LED chips are closely packed together, resulting in a smoother and more evenly distributed illumination, which is beneficial for applications requiring consistent lighting quality.

10. Design flexibility: Due to their compact size and high level of integration, COB LEDs offer design flexibility and versatility. They can be used in a wide range of lighting applications and can be arranged in various configurations to achieve different lighting effects.

The disadvantage of COB LEDs

While COB LEDs have many advantages, they also have some disadvantages:

1. Limited beam angle: COB LEDs typically have a narrower beam angle compared to other LED types like SMD LEDs. This means that their light output is more focused in a specific direction, which may not be suitable for applications requiring a wider spread of light.

2. Higher cost of production: COB LEDs require a more complex manufacturing process compared to SMD LEDs, which can lead to higher production costs. This cost may be passed on to consumers, making COB LEDs relatively more expensive.

3. Thermal management: COB LEDs generate heat, and proper thermal management is crucial to ensure their optimal performance and longevity. The concentration of multiple LED chips in a small area can result in higher heat accumulation, requiring adequate heat dissipation techniques such as heatsinks or fans.

4. Maintenance and replacement: If one LED chip in a COB array fails, it can be challenging to replace it individually. The entire COB module might need to be replaced, leading to higher maintenance costs compared to individual LED chip replacements.

5. Color consistency: Achieving consistent color temperature and color rendering across multiple COB LED chips can be more challenging compared to SMD LEDs. This can result in variations in color between different COB modules or batches.

It is important to weigh these disadvantages against the advantages and consider the specific requirements of the application when choosing COB LEDs.

Feature of COB LED Chips

Electrical stability, scientific and reasonable circuit design, optical design, and heat dissipation design.
The use of heat sink technology ensures that the LED has an industry-leading heat lumen maintenance rate (95%). The lifetime longer than 50000Hrs.
It is convenient for the secondary optical matching of the product and improves the lighting quality.
High color rendering, generally COB Chips RA more than 90. Uniform luminescence, no spot, healthy and environmentally friendly.
Simple installation, convenient use, reducing the difficulty of lamp design, saving lamp production processing and subsequent maintenance costs.

Different color rendering index (CRI)

The color rendering index of most SMD led chips on the market is generally 70-80, and some brands have CRI90 options, such as Osram SMD2835. Most of the COB chips are above CRI90, even up to CRI97. This is also a good color rendering index. This is the reason why indoor commercial lighting with higher index requirements often choose COB led lamps.

What is the difference between COB and SMD chip?

1. The production process is different.

SMD: The LED chip is fixed on the pad of the lamp bead holder with conductive glue and insulating glue, and then welded with the same conduction performance as the COB package. After the performance test, it is encapsulated with epoxy resin, and then the light is split, Cutting and taping, transport to the screen factory and other processes.
COB: The LED chip is directly fixed on the soldering pad of the lamp bead on the PCB board with conductive glue and insulating glue, and then the conduction performance of the LED chip is welded. After the test is completed, it is encapsulated with epoxy resin.

2. The luminous effect is different

SMD: The light-emitting surface of the SMD LED chip is scattered and there is glare
COB: The viewing angle of COB is large and easy to adjust, and there is no glare.
Generally, The Led lights with COB chips have uniform and round spots, no astigmatism, no black spots, and no shadows; while Led luminaires with SMD chips have bright spots in the middle of the spot, halos on the outer edges, and uneven light spot transitions. You can refer to this difference about COB LED Downlight and SMD LED Downlight.


    Left: COB | Right: SMD

How is COB LED Strip Made?

1. Substrate: The process begins with a high-quality substrate material such as aluminum or ceramic. The substrate provides a solid base for the COB LED chips.

2. Die Attachment: The LED chips, also known as dies, are attached directly to the substrate using a die bonding material, often epoxy resin. The dies are placed closely together to form an array.

3. Wire Bonding: Thin wires, typically made of gold or aluminum, are used to establish electrical connections between the individual LED chips and the external electrical contacts. This process is known as wire bonding.

4. Encapsulation: Once the chip attachment and wire bonding are complete, the COB LED chips are encapsulated to protect them from external elements. The encapsulation material is usually a clear or diffused epoxy resin that provides mechanical protection and enhances light diffusion.

5. Phosphor Coating: In some cases, phosphor coatings may be applied on top of the COB LED chips. These phosphor coatings help convert the blue light emitted by the chips into a broader spectrum of colors, producing a more uniform and desirable light output.

6. Wiring and PCB: To facilitate electrical connections and provide control, wiring and a printed circuit board (PCB) are added to the COB LED strip. The PCB typically includes traces and solder pads for power input, signal control, and any additional features like dimming or color control.

7. Protective Cover and Mounting: Finally, a protective cover or lens is often applied to the COB LED strip to provide further protection and to help control the direction of light output. The strip may also feature adhesive backing or mounting options for easy installation.

COB LED Strip with 24V Power

COB LED strips can be designed to operate on various voltages, including 24V. When using a 24V power supply, it is important to ensure that the entire LED strip is rated for that voltage. COB LED strips that are designed for a 24V power supply will typically have LEDs connected in series sets of two or more. This allows for a higher voltage drop across the LED chips, allowing them to operate at a higher efficiency and producing more light per watt of power consumed.

To power a COB LED strip with 24V, you need a 24V DC power supply that can provide sufficient current to meet the power requirements of the LED strip. The power supply needs to be capable of providing enough wattage to the LED strip without being overloaded. The wattage required depends on the length of the LED strip and the type and number of LEDs used.

It is recommended to use a constant current power supply with a voltage range of 22-26V to power a COB LED strip with 24V. This ensures that the LED strip receives a consistent current, which is necessary for optimal performance and longevity of the LEDs.

Before powering the COB LED strip, make sure to double-check that the voltage rating of the LED strip matches that of the power supply to avoid damaging the LED strip. Additionally, follow proper installation and wiring techniques to ensure that the LED strip operates safely and reliably.

It's worth noting that the manufacturing process can vary between different manufacturers and specific LED strip models. This is a general overview of the process to give you an understanding of how COB LED strips are typically made.

    Conclusion:COB LED strips are a versatile and innovative technology that are changing the way we think about LED lighting. Whether you're looking for a more energy-efficient lighting solution for your home or a reliable lighting source for your business, COB LED strips are an excellent option to consider.


About Us

LEDODM Lighting is committed to excellence and innovation. We always pay attention to the details in order to meet the clients’ requests. That’s why we have gained a good reputation both in China and abroad.

Our Cob led strip Light are designed and manufactured in our factory, located in ShenZhen city. We have a wonderful team who are equipped with the latest technological innovations and with a hot heart to keenly observe and capture the ideas.

Our goal is to be a great brand in the field of COB LED Strip Light. We believe that our products would reach the world and bring a new lifestyle of lighting to more countries all over the world.

Popular LED Strip Lights

content is empty!

  Subscribe to our newsletters. Free Sample Available!

Single Color LED Strip Light

Colorful LED Strip Light

Customized LED Strip Light

LED Strip Aluminum Profile

Addressable LED Strip Light

Flexible LED Neon Light

LED Strip Accessories



Follow Us

Copyright ©️ 2008-2019 Shenzhen Ledodm Lighting Co., Ltd | Blog | Sitemap