Source smarter with
Leverage AI to find the perfect product match in seconds
Matches from over 100 million products with precision
Handles queries 3 times as complex in half the time
Verifies and cross-validates product information
Get the app
Get the Alibaba.com app
Find products, communicate with suppliers, and manage and pay for your orders with the Alibaba.com app anytime, anywhere.
Learn more

Cem led

(3301 products available)

About cem led

Types of CEM LED

CEM LED is a type of advanced lighting technology that uses semiconductor materials to create and emit light. It is commonly used in various applications, including general lighting, automotive lighting, backlighting, and displays, due to its energy efficiency, long lifespan, and design flexibility. CEM LEDs offer several advantages over traditional lighting technologies, making them a popular choice for many industries and applications.

  • CEM LED 1:

    CEM LED 1 is a top-emitting LED that utilizes a chip-scale package on a transparent conductive oxide (TCO) glass substrate. This unique structure allows for efficient light emission and high optical performance. CEM LED 1 is suitable for applications requiring high brightness and excellent color quality, such as indoor and outdoor lighting.

  • CEM LED 2:

    CEM LED 2 is also a top-emitting LED but with a chip-scale package on a metal (e.g., nickel) or ceramic (e.g., alumina) substrate. This CEM variation offers enhanced thermal management and stability, making it ideal for applications with high thermal demands, such as automotive and industrial lighting.

  • CEM LED 3:

    CEM LED 3 is a bottom-emitting LED with a chip-scale package on a metal or ceramic pedestal. This design enables efficient light extraction and is suitable for applications requiring compact size and high light output, such as backlighting for displays and general lighting in small form factors.

  • CEM LED 4:

    CEM LED 4 is a vertical LED with a chip-scale package on a metal or ceramic substrate. This CEM LED 4 structure allows for high light output and excellent color rendering, making it suitable for applications where color quality is critical, such as museum and art gallery lighting.

  • CEM LED 5:

    CEM LED 5 is a flip-chip LED with a chip-scale package on a metal or ceramic substrate. This design improves current spreading and reduces thermal resistance, resulting in higher efficiency and reliability. CEM LED 5 is suitable for applications requiring high power and performance, such as high-intensity discharge (HID) replacement lamps and high-bay industrial lighting.

  • CEM LED 6:

    CEM LED 6 is a special light source with a chip-scale package on a metal or ceramic substrate and uses a unique epitaxial structure. This design allows for high light output and excellent color quality, making it suitable for applications requiring high brightness and good color quality.

Specification & Maintenance of CEM LED

Each CEM LED has specific features that set it apart and determine how it can be used. Below are some of the general specifications:

  • Power Consumption:

    These are low-power devices that consume 2 watts or less.

  • Light Output:

    These are low-power devices that produce 100-200 lumens.

  • Color Temperature:

    CEM LED lights are available in warm white (2700K-3000K) and cool white (4000K-5000K) colors.

  • Beam Angle:

    These have a beam angle of 60-120 degrees, which focuses on a wider angle and illuminates a larger area.

  • Color Rendering Index (CRI):

    CEM LED lights have a CRI of 80 or above, ensuring that they produce color that is close to natural.

  • Lifespan:

    CEM LED lights are designed to last for about 25,000 hours, which reduces the need for frequent replacement.

  • Dimming Capability:

    CEM LEDs have the ability to be dimmed, allowing for brightness adjustment to suit various needs.

  • Voltage:

    The CEM LED light uses a low voltage of 12V/24V, which makes it safe and reduces the risk of electric shock.

  • Material:

    CEM LED lights are made from durable materials such as aluminum or plastic, which makes them suitable for different environments and conditions.

The CEM LED lighting system requires regular maintenance to ensure optimum performance and durability. Below is the maintenance process:

  • Inspection:

    Regular inspection of the lighting system should be done to check for any signs of damage, wear, or failure. This can help identify any potential problems before they become serious.

  • Cleaning:

    These lights should be cleaned regularly to prevent dust, dirt, and grime build-up, which can reduce brightness and affect performance. Mild soap and water or a suitable cleaner should be used for cleaning.

  • Replacement of damaged parts:

    If any part of the lighting system is found to be damaged or not functioning properly during inspection or cleaning, it should be replaced as soon as possible. This will help maintain the reliability and efficiency of the system.

  • Connection check:

    The lighting system connections should be checked regularly to ensure they are secure and free from corrosion. Loose or corroded connections can cause reduced performance and energy efficiency.

  • Software updates:

    If the lighting system has any control or management software, it should be regularly checked for updates. This will ensure that the system is running with the latest features and improvements.

  • Brightness adjustment:

    Depending on the needs and requirements, the brightness of the CEM LED lighting system can be adjusted. This will help save energy and extend the lifespan of the lights.

  • Follow the manufacturer's instructions:

    The maintenance process should be carried out according to the manufacturer's instructions for each specific type of CEM LED lighting system. This will ensure that the system operates optimally and safely.

How to Choose CEM LED

Choosing the right CEM LED for a project can be a daunting task, especially when considering the numerous options available. Here are some factors to consider when choosing CEM LED lights:

  • Application: Consider the purpose of the LED light. Is it for indoor lighting, outdoor lighting, automotive lighting, or specialized applications such as medical or scientific lighting? Different applications may require specific features such as color temperature, brightness levels, or beam angles.
  • Brightness: CEM LED lights are available in various brightness levels. Determine the required brightness level for the intended application. Consider factors such as the size of the area to be illuminated, the presence of other light sources, and the desired lighting effects (e.g., general lighting, accent lighting, or task lighting).
  • Color temperature: CEM LEDs emit light in different color temperatures, influencing the perceived color of the light. Depending on the application and desired atmosphere, choose between warm white (2700K-3000K), cool white (5000K-6500K), or daylight (6500K-7500K) tones.
  • Energy efficiency: CEM LEDs are known for their energy efficiency compared to traditional lighting technologies. However, some CEM LEDs are designed to be more energy-efficient than others. Look for LEDs with high lumen-per-watt efficiency to maximize energy savings and reduce electricity costs.
  • Form factor and compatibility: Consider the available space and the required CEM LED form factor for the application. CEM LEDs come in various shapes and sizes, including chips, modules, and packages. Additionally, ensure that the CEM LED is compatible with the existing lighting fixtures, drivers, and control systems.
  • Color rendering index (CRI): For applications where color accuracy is crucial, such as in retail or art galleries, consider the CRI of the CEM LED. A higher CRI (90 or above) ensures better color reproduction, making colors appear more vibrant and true to life.
  • Reliability and longevity: CEM LEDs are designed for high reliability and long lifespan. However, some CEM LEDs may have extended lifetimes due to superior packaging and chip technologies. Consider the expected lifetime and warranty period to ensure long-term reliability.
  • Special features: Depending on the application, consider any additional features that may be beneficial. These include dimming capabilities, moisture and dust resistance, UV or IR emission, and specialized spectral outputs.
  • Cost: While CEM LEDs may have a higher initial cost than traditional lighting technologies, their long-term energy savings and durability make them cost-effective. Compare the total cost of ownership (TCO) considering factors such as energy consumption, maintenance, and replacement costs.

By considering these factors and researching the available options, one can choose the right CEM LED that meets the requirements, enhances the lighting experience, and provides numerous benefits over traditional lighting technologies.

How to DIY and Replace CEM LED

Replacing CEM LED lights can be a simple task if one has the right tools and follows the correct procedures. The process is straightforward, whether replacing CEM truck lights or other vehicle CEM LED lights. Below is a step-by-step guide on how to replace CEM LED lights.

Before that, here are the tools needed to replace CEM LED lights:

  • New CEM LED light
  • Torx screwdriver
  • Phillips screwdriver
  • Flathead screwdriver
  • Trim removal tool
  • Electrical connector tool
  • Wrench

The process

  • Select the right CEM LED light that needs replacement.
  • Switch off the power supply to the CEM lights before beginning the replacement process to avoid electrical shock.
  • Use a Phillips screwdriver or trim removal tool to remove the trim around the CEM lights carefully.
  • With a Torx screwdriver, remove the screws that hold the LED light in place.
  • Carefully pull out the old CEM LED light from the mounting hole.
  • Disconnect the electrical connections using an electrical connector tool and set wiring.
  • Install the new CEM LED light by connecting the electrical connections. This step is very crucial. Ensure the connections are secure to avoid power supply interruptions.
  • Once the electrical connections are secure, use a flathead screwdriver or trim removal tool to install the mounting ring or lens.
  • Secure the mounting ring or lens using a Phillips screwdriver and trim removal tool.
  • Turn on the power supply and test the new CEM LED light to ensure it's working properly.

Q and A

Q1: What is the difference between CEM and non-CEM LEDs?

A1: CEM LEDs are used for specialized applications that require high reliability and performance. Non-CEM LEDs are used in general lighting applications. CEM LEDs have higher tolerances to extreme conditions and harsher environments compared to non-CEM LEDs.

Q2: Are CEM LED lights good?

A2: Yes, CEM LED lights are excellent. They are high-quality LED lights made with superior technology. CEM LED lights are brighter and have a high light output. They are durable and can withstand harsh conditions. CEM LED lights are energy efficient and help reduce energy costs.

Q3: What does CEM mean in LED?

A3: CEM in LED means "Chip on Board (COB) LED." It refers to a technology where multiple LED chips are mounted directly on a substrate or circuit board. This allows for higher density and increased efficiency of the LED light.

Q4: What is CEM COB LED?

A4: CEM COB LED is a Chip on Board (COB) LED technology. It is an innovative and advanced lighting technology that provides high-quality and efficient lighting solutions. CEM COB LEDs are known for their brightness, energy efficiency, and long lifespan.

Q5: Is CEM COB LED good?

A5: Yes, CEM COB LED is good. It is a good choice for lighting solutions. CEM COB LEDs are energy efficient and can save energy by up to 80%. They produce less heat and are good for the environment. CEM COB LEDs have a long lifespan of up to 50,000 hours. They are a good choice for outdoor LED flood lights.