What do cameras on traffic lights look like in Washington state?

I accidently ran a red light, i know i feel so stupid, and i noticed there is like a small black rectangle thing sticking up from the bar that the traffice lights hangs on. Is this a camera? what else could it be? Could someone give me a link to a picture of what a camera looks like? I live in Woodinville Washington if that makes any difference. thanksWhat do cameras on traffic lights look like in Washington state?
Its a false camera,.