Yellow lightbulb icon for floodlight cam

I have a hardwired security cam (three of them). One recently stopped working, or at least the lights did. For a while, only 1 light was partially on, now the lights do not come on at all. Everything else works fine - video, recording, alert, etc. tried going in and adjusting settings and manually turning on light. Tried rebooting the device as well. But nothing. Noticed there is a bright yellow bulb icon in lower right on the app, it is the only one that has it. But can’t find any reference to that in docs. Thoughts on what that icon in the app is trying to tell me? Could the bulbs be burnt out after only two years?