Incandescent christmas tree lights aka mini lights are wired in series so if your lights go partially out you have one of three issues.
Led christmas lights half strand out.
People actually suggested cutting out the offending half string and patching in another one.
As the link cannot carry on further than the busted bulb.
And if you re buying new lights consider upgrading to led christmas lights.
There was no way i was going to replace the entire string so i went online to see what kind of solution might present itself.
If after all the testing the light string still doesn t illuminate it s time to get some new lights.
I put a new bulb in and boom fixed.
If this is your problem carefully replace the bulb after first unplugging the string of lights.
You may find that the bulb has a black or silver looking stain on the inside.
Check the entire strand of lights for a missing damaged or abnormal looking bulb according to the christmas light company website.
Second test the christmas light bulbs with an inexpensive tester available where holiday lights are sold and online usually changing a problem bulb or tightening it will fix the entire strand.
Thanks to everyone for the help.
Second half of strand was out.
The first several search results made me gag.
The christmas light tester will indicate which bulbs are bad and need to be replaced.
Some christmas light testers work by having you slide each christmas light bulb through a hole.
I d try and replace the first dead bulb or if you can t find replacements you could try just linking the connectors by shorting them and.
I hade the same problem on a set of ge led lights.
Sixty bulb led christmas lights are built from two half strings of 30 bulbs each.