Thanks to everyone for the help.
Led christmas lights half strand out.
Sixty bulb led christmas lights are built from two half strings of 30 bulbs each.
The christmas light tester will indicate which bulbs are bad and need to be replaced.
If this is your problem carefully replace the bulb after first unplugging the string of lights.
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 took out each light staring at the end and i found one with a wire broken off of the bulb.
I hade the same problem on a set of ge led lights.
Incandescent christmas tree lights aka mini lights are wired in series so if your lights go partially out you have one of three issues.
A light bulb has come out of its socket or is half out of its socket and it has brought down the circuit.
Some christmas light testers work by having you slide each christmas light bulb through a hole.
As the link cannot carry on further than the busted bulb.
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.
I put a new bulb in and boom fixed.
People actually suggested cutting out the offending half string and patching in another one.
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.
You may find that the bulb has a black or silver looking stain on the inside.
If after all the testing the light string still doesn t illuminate it s time to get some new lights.
The first several search results made me gag.
Second half of strand was out.