how to connect cob led strip

Connecting a COB (Chip-on-Board) LED strip is relatively straightforward. COB LED strips are designed for high brightness and energy efficiency, making them suitable for a variety of applications such as lighting, signage, and accent lighting. Here are the general steps to connect a COB LED strip:

Materials You’ll Need:

  • COB LED strip
  • Appropriate power supply (constant voltage) matching the LED strip’s voltage and wattage requirements
  • Wire strippers and cutters
  • Soldering iron and solder (if necessary)
  • Heat shrink tubing (if necessary)
  • Electrical tape or heat-resistant tape (if necessary)


  1. Determine the Voltage and Wattage: Check the technical specifications of your COB LED strip to determine its voltage and wattage requirements. This information is crucial for selecting the appropriate power supply.
  2. Select the Power Supply: Choose a constant voltage power supply that matches the voltage and wattage requirements of your COB LED strip. Make sure the power supply provides the correct voltage (e.g., 12V or 24V) and has sufficient wattage capacity to power your LED strip.
  3. Cut the LED Strip (if necessary): Measure and cut your COB LED strip to the desired length. Some COB LED strips come with designated cut points for customization.
  4. Prepare the Wires: Strip a small section of insulation from the ends of the wires attached to your COB LED strip. Typically, you’ll find two wires: one for the positive (+) connection and one for the negative (-) connection.
  5. Connect the Wires: Depending on your LED strip and power supply, you have two options for connecting the wires:

a. Direct Connection (No Soldering): If your LED strip and power supply have compatible connectors (e.g., plug and play connectors), simply connect the wires together following the manufacturer’s instructions. This method avoids soldering.

b. Soldering Connection: If there are no compatible connectors or you need to extend the wires, solder the wires from the COB LED strip to the wires from the power supply. Ensure proper polarity by connecting the positive wire to positive and the negative wire to negative. Use heat shrink tubing to insulate and protect the soldered connections.

  1. Test the Connection: Before fully installing your COB LED strip, plug in the power supply and turn it on to verify that the LEDs light up as expected. This step ensures that the wiring is correct.
  2. Secure the Connection (if necessary): Use electrical tape or heat-resistant tape to secure the wires and prevent them from coming loose. Ensure there is no strain on the soldered connections.
  3. Mount the COB LED Strip: Depending on your application, use adhesive backing or mounting clips to attach the COB LED strip to the desired surface. Make sure the strip is secure and properly aligned.
  4. Power On: Turn on the power supply to activate the COB LED strip. Adjust the lighting settings, if applicable, using any provided controls or remote devices.
  5. Safety Precautions: Always follow safety guidelines when working with electrical components. Ensure that the power supply is appropriately rated and that there are no exposed wires or connections that could pose a safety hazard.

Remember that the specific details and instructions may vary depending on the brand and model of your COB LED strip and power supply, so be sure to consult the manufacturer’s documentation for any specific guidance.

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