Replacing Lights on a Pre-Lit Christmas Tree

A Pre-lit Christmas tree is designed with strands, which are already attached to each of the tree branches while each of the strands has individual bulbs. The pre-lit Christmas tree is chosen because most of us do not like untangling strings to happen to the Christmas light strands. The only problem is that, the strands for the Pre-lit Christmas tree are not removable unlike the individual light strands and whenever one light bulb gets burned, it might affect the other lights on the strand. Besides that, the Pre-lit Christmas tree also needs regular maintenance in order for the lights to always stay lit when the time comes for you to use them.

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What you need to do:

  1. Light tester
  2. Replacement bulbs
  3. Christmas light fuses
  4. Strand of lights with its length depends on the Christmas tree

Pre-Lit Christmas Tree


  1. Firstly, you have to make sure that you have to plug the pre-lit Christmas tree into a workable power outlet supply.
  2. If you have your own Christmas bulb tester, it is recommended that you check each of the lights. You need to do this task gently and remove each of the bulbs from its strands before you place it into the bulb tester. A working bulb will automatically light up when tested.
  3. Whenever you notice any one of the bulbs is not working, you need to replace it with your spare bulbs or purchase it from your local electrical supply store.
  4. If the new replacement lights are still not working, you have to try twisting the bulbs gently from side to side.
  5. If all of the lights are not working accordingly, you need to check the fuse at the end of your light strand. Then, by using a small screwdriver or butter knife you need to gently pry open its cover of the fuse. Next step to do is to pull out the damaged fuse and change it with a new one.
  6. Other areas that you should be checking are the light strands and it is easy for you to check because most light strands comes with letters or numbers assigned onto them from the top to bottom. For instance, you will notice that A plugs into B, which also plugs into C. You need to find the end plugs of the unlit section and in this case section B is not working. Therefore, you need to unplug B, which is the unlit section.
  7. Then, you have to plug in your new strand of lights, wind and wrap it around the tree. Next step to do is to connect the end of the new strand of lights to strand A where it will meet the beginning of strand B. This strand will be used to light the Christmas tree as if you are lighting up an unlit tree.
  8. Finally, you can plug in your new strand with the bottom end of your new strand into the next connection down on your tree or the wall if you reach the tree’s bottom.

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Image Credit:

Flickr CC

Additional Reading:

The Ultimate Christmas