Then connect the second bulb to the socket in the middle of the string.
Easy way to check xmas lights.
Christmas light testers the most convenient way to test for faulty bulbs in a light string is through the use of a light tester.
Check the fuse holiday lights usually have cartridge fuses in a small compartment in the cord plug behind a sliding door.
Easy ways how to fix led christmas lights using a tester led and light keeper pro repair kit tool 16 http amzn to 1r0cgri link supports the channel led.
If the other neon bulb lights then the problem is in the first half of the set.
Open the sliding compartment door and remove the fuse s.
Then remove the middle bulb of the string and check it with the multimeter.
If the original neon bulb lights move halfway down the remaining part of the set and try again.
Then connect the first bulb to the first socket and repeat the process for the second one.
Light testers search for the point in the string where the voltage changes between a good bulb with current flowing and a problem area with minimal current.
At first divide the number of lights into two distinct sections.