Why Are Some Christmas Lights Out. All of the remaining lights in that chunk will go dark. incandescent christmas tree lights (aka mini lights) are wired in series so if your lights go partially out you have one of three issues:
Why are half of my Christmas lights out? Christmas Light Source Blog - image credit : blog.christmas-light-source.com
This can be caused by rough handling. The connection to the bulb is lost as the bulb moves through the sockets. Connect the tool to that socket via a port on the tool, as if you were inserting a new.
Why are half of my Christmas lights out? Christmas Light Source Blog
Dimly lit led christmas lights. The number one culprit when portions of a strand of christmas lights go out is a single faulty bulb. Connect the tool to that socket via a port on the tool, as if you were inserting a new. test the christmas light bulbs with an inexpensive tester.
