Some introduction about cob light strip

Some introduction about cob light strip

As a new led strip light technology, COB led strip lights have gradually attracted market attention and favor in recent years. So how much do you know about led light strips? What exactly does COB light strip mean? Do you know its characteristics and advantages? Its applications and advantages, etc.? This article will discuss these contents of COB light strips in detail.

Definition of COB light strip

COB is the abbreviation of Chip On Board. It is a technology that directly encapsulates multiple LED chips on a circuit board. Unlike traditional SMD led strips (Surface Mounted Device) technology, COB light strip integrates multiple small LED chips into one package and covers it with a layer of fluorescent glue or silicone to form a continuous light-emitting surface.

1. Continuous and even light: The surface of the COB light strip is a continuous light-emitting surface without obvious LED dots （usually called free dots）, making the light more uniform and soft.

2. Good heat dissipation performance: The structural design of the COB led strip helps to better dissipate heat and extend the life of the LED chip.

3. Simple appearance: Since there are no visible LED dots, the appearance of the COB light strip is more simple , suitable for various decorative occasions.

4. High CRI. For cob led strip light the CRI>90, The light source has good color rendering and can more accurately restore the color of the object.

Design of COB light strip

COB light strip is mainly composed of LED chip, circuit board, fluorescent glue or silicone encapsulation layer, driving circuit, etc.

1. LED chip: The LED chips in COB led light are arranged closely, very high density ,Commonly there are 320leds/M  480leds/M  5120leds/M 840leds/M even can reach more than 1000leds per meter. which can achieve higher light density. At the same time, this arrangement also makes the light emission of COB led stripe more uniform, without the dots of traditional SMD light strip.

2. Circuit design: The circuit design of COB led stripe is relatively simple, mainly including power input, driving circuit and LED chip connection. Due to the high density led chips, the circuit design needs to consider good heat dissipation and stable current supply to ensure the reliability and long life of the led strip lights.

Performance characteristics of COB light strip

1. High brightness and high color rendering: COB light strip can provide high brightness light source, high efficiency (for example 100Lm/W , some models are 130lm/W)and has good color rendering(>90), which can truly restore the color of objects.

2. Uniform light: Because it is high density leds and its  a continuous luminous surface, the light emitted by COB light strip is very uniform, without obvious light dots.

3. Energy saving and environmental protection: COB light strips have high energy efficiency, can save energy, and the materials used are environmentally friendly and environmentally friendly.ours COB led strip lights are CE RoHS ERP certificated.

4. Good heat dissipation performance: The structural design of COB light strips helps to better dissipate heat and extend the service life of LED chips.

5. Flexibility and cuttability: COB light strips are usually designed as flexible structures, which can be easily bent and cut to adapt to various installation environments.

6. Dimmable. The COB led strip lights all dimmable . you can adjust the brightness by controller.

Comparison between COB light strips and traditional light strips(SMD led strips)

Compared with traditional SMD light strips, COB light strips have the following advantages:

1. Higher LED density :For COB led strips its directly package the chip on the PCB board,so one meter can arrange many led chips ,Creates uniform light. Ideal for linear lighting.

2.More uniform light: The luminous surface of COB light strips is continuous, without obvious dots , while traditional SMD light strips will have dots.

3. Better heat dissipation performance: The structural design of COB light strips helps to better dissipate heat and extend the service life of LED chips.

4.More concise appearance: COB light strips have no visible LED dots, and the appearance is more concise and beautiful, suitable for various decorative occasions.

However, COB light strips also have some challenges, such as complex manufacturing processes and relatively high costs. But with the continuous advancement of technology, All are gradually being resolved. Now COB light strips are becoming more and more popular.

Models of COB light strips on the market：

There are many types of COB light strips on the market, mainly including the following:

1. Single color COB light strips: provide a single color light source, such as warm white 2700k 3000k /natural white 4000k /cold white cool white 6000k 6500k/red/green/blue etc., suitable for various basic lighting and decoration occasions. Even though they are only color, but they are dimmable ,the brightness can be adjust.

2. tunable white cob led strip/ rgb cob led strip /rgbw cob led strip/RGBCCT COB led stips : can provide a variety of color light sources, can be adjusted by the controller to achieve different color effects, suitable for stage, entertainment venues, outdoor decoration, etc.

3. Smart/digital COB light strips: also called addressable programmable cob led strip light. equipped with intelligent control systems, can be controlled by mobile phone APP, voice assistants, etc., to adjust brightness, color temperature, color, etc., suitable for smart homes and high-end commercial places.

These COB led strip lights all can do Dc12v and Dc24V. some models also can do Dc5V Dc48V etc.  And Ip20  ip65  ip67  ip68 waterproof cob led strips are available suitable for lighting and decoration in outdoor and humid environments.

Application for COB light strips

Due to their unique advantages, COB light strips are widely used in various lighting and decoration occasions:

1. Home lighting: used for ceiling lighting, cabinet lighting, mirror lights, etc., to provide uniform light for the home environment.

2. Commercial lighting: used for in stores, supermarkets, exhibitions and other places to enhance the display effect of goods.

3. Outdoor lighting: used for decorative lighting in outdoor places such as building exterior walls, bridges, and squares.

4. Automotive lighting: used for car interiors, car lights, etc., to provide efficient lighting solutions for vehicles.

5. Special lighting: used in occasions such as stage, studio, film and television production that require high color rendering and high brightness light sources.

Installation and use of COB light strips

The installation and use of COB light strips are very simple and easy, but the following points need to be noted:

1. Choose a suitable power supply and controller: Make sure that the power supply and controller match the specifications of the COB light strip to avoid damage to the light strip due to excessive or insufficient current.

2. Correct cutting and connection: COB light strips are usually designed with cutting lines, which can be cut as needed, but make sure to cut on the designated cutting line to avoid damaging the circuit. At the same time, the cut light strips need to be connected with professional connectors to ensure reliable electrical connections at the joints.

3. Waterproof treatment: For COB light strips that need to be used outdoors or in humid environments, waterproof treatment should be done during installation to ensure that the light strips work normally in harsh environments.for example ip65 ip67 ip68 waterproof , When you cut, be sure to take waterproof protection measures on the end.

4. Fixing and installation: COB light strips are usually designed with 3M tape at back . When installing, just tear off the adhesive backing paper and stick the light strips in the required position. However, in some special occasions,for example the mounting surface is not smooth ,additional fixing clips or brackets may be required for fixing.

5. Bending precautions： The LED strip bending radius is 10mm. Please do not fold with sharp angle or twist the LED strip.

It will be likely to destroy the LED strip if exceed the maximum rated operating voltage.

Please do not connect the LED strip beyond the maximum connecting length.

LED strips are equipped with a self-adhesive tape for attaching the LED strip to suitable materials, such as aluminum profiles, which must be clean and free of oil or silicone coatings, as well as other dirt/dust particles. The adhesive tape is intended for single use and if removed may damage the material to which it is stuck and the LED module itself, which must then be scrapped.

Some accessories commonly used by COB light strips

easy/quick connectors for cob led strips:

power supply for cob light strip:

Aluminum profile for cob led strip light:

Common connection methods for reference:

Development prospects of COB light strips:

With the continuous advancement of technology and the continuous growth of market demand, We believe that COB light strips will become more and more popular:

1. Technological progress: With the continuous development of LED technology, the manufacturing cost of COB light strips will gradually decrease, the performance will continue to improve, and the cost performance will become higher and higher. In the future, COB light strips will be applied to more places.

2. Market demand: In order to adapt to the continuous changes in the market, people's demand for efficient, energy-saving and environmentally friendly lighting products is increasing, which provides a broad market space for the development of COB light strips.

3. Application scenarios: With people's increasing requirements for the quality of LED light strips, the application scenarios of COB light strips are also constantly expanding. From home lighting to commercial lighting, outdoor lighting, automotive lighting, etc., the market scope of COB light strips will become more and more extensive.

4. High cost performance: COB light strips will occupy an increasingly important position in the lighting market with their advantages of high brightness, uniform light, energy saving and environmental protection.

In short, as a very potential LED light strip lighting product, COB light strips will occupy an important position in the future lighting market with their unique advantages and broad application prospects. I hope that through the introduction of this article, everyone will have a more comprehensive understanding of COB light strips and be able to give full play to their advantages in practical applications.  In the near future we will also develop more new COB light strips, which will be introduced to you one by one. If you have any questions about LED light strips, please feel free to contact us.