![New home, so newer to these light fixtures. I can remove the other lights like this by screwing off the "nipple" but this one doesn't work no matter what I try. The New home, so newer to these light fixtures. I can remove the other lights like this by screwing off the "nipple" but this one doesn't work no matter what I try. The](https://i.redd.it/hxszk9wa51v91.jpg)
New home, so newer to these light fixtures. I can remove the other lights like this by screwing off the "nipple" but this one doesn't work no matter what I try. The
![Noticed this red light in a light fixture at my work that hadn't been there before (and now the light itself doesn't work). Any ideas? : r/whatisthisthing Noticed this red light in a light fixture at my work that hadn't been there before (and now the light itself doesn't work). Any ideas? : r/whatisthisthing](https://i.redd.it/e45i09w2k8q11.jpg)
Noticed this red light in a light fixture at my work that hadn't been there before (and now the light itself doesn't work). Any ideas? : r/whatisthisthing
![recessed lighting - Kitchen lights not working after changing bulbs - Home Improvement Stack Exchange recessed lighting - Kitchen lights not working after changing bulbs - Home Improvement Stack Exchange](https://i.stack.imgur.com/PdVij.jpg)