I was tasked by Mrs. Carrera to get the Christmas decorations down from the attic for the first time in three years. Last year her arm was in a sling, and the year before she had some other health issues.
So down comes a bunch of boxes, and the two parts of the Christmas tree. The lights wired into the tree and are part of the tree. It is a really pitiful design, no doubt to keep costs down. Much cussing was required.
Entire sections of lights will not work if one lamp is blown out. So track down each light, and replace. They are tiny little lights. The connectors to the two parts of the tree have some of the smallest fuses I have ever seen. The size of a grain of rice fuses.
The filament is really hard to see, so I had to get out my magnifying headlamp glasses. Some that looked OK, would not test as good on my Fluke multimeter.
This picture is blurry but you can see one side has a raised point so they can't go in the socket except one way. That makes no sense as it should not matter. And getting the bulb out of the socket takes a special tool they supply, but it is difficult to use.
You can see the tiny little copper wires from the bulb. Getting the probe ends from the multi meter required the tiniest probe ends I have for the Fluke. I had to use the highest magnification set of lenses of the headlamp to even see the wires and be sure the probe ends were indeed in contact to the wires. It was like watch making close up.
The most annoying part is knowing they were all working when I put the tree in the attic. They stayed dry for sure, but many just decided to make life difficult.