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In this blog post, we will show you how to easily replace a broken socket for your Christmas lights. Whether you have a C9 or C7 socket on an SPT-1 wire, we will guide you through the process step-by-step.

Replacing the Socket

To begin, we need to remove the broken socket. Start by folding over the wire and gripping the bulb. Then, perform a popping motion to remove the socket. It may be necessary to replace the socket because there could be broken plastic still stuck inside. The sockets have little vampire teeth on each side that pierce the wire, making it impossible to reuse them once removed. You will need replacement sockets.

To install the replacement socket, lay the wire flat and push it down into the socket. Align the wire with the factory clip side groove. Once aligned, you can either push the socket down on the table or use pliers to clamp it straight down. Ensure that the bottom of the socket is seated perfectly. If needed, give it a slight squeeze to make sure it is secure.

What You Need

For this task, you will need the following:

  • SPT-1 wire (or SPT-2 wire)
  • Male and female SPT-1 plugs
  • Replacement sockets (C9 or C7)
  • Channel locks or pliers

SPT-1 wire is commonly used for custom Christmas light displays. The plugs can be added anywhere along the wire, so you can cut it to any length you desire. The spacing between the sockets can also be customized, with options for 12, 15, 24, or 36 inches. SPT-1 and SPT-2 wires are both 18-gauge wires, with SPT-2 having a slightly thicker coating. Make sure the plugs and sockets you purchase match the wire you are using.

Where to Buy

If you need to purchase any of the items mentioned, you can find them at Christmas Light Contractors USA. Visit their website at to check if they have the items you need in stock.


Can I reuse a broken socket?

No, it is not recommended to reuse a broken socket. The little vampire teeth on the socket pierce the wire, making it impossible to reattach once removed.

What kind of pliers should I use?

It is best to use channel locks that maintain a parallel grip throughout the entire squeezing process. This will prevent the socket from breaking. If you don’t have channel locks, you can also use regular pliers, but be careful not to apply too much pressure at an angle, as this may result in a broken socket.

Where can I get professional Christmas lights for my home or business?

If you are interested in purchasing professional Christmas lights for your home or starting a business, you can find them at Christmas Light Contractors USA. Visit their website at for more information.

We hope this guide has been helpful in showing you how to replace a broken socket for your Christmas lights. If you have any further questions, feel free to reach out to us on our Facebook group, Christmas Light Contractors. Happy decorating!

How to Replace a Broken Socket for Christmas Lights