[Jeffhs]

These photos may be the last we will ever see of mercury-vapor or incandescent street lights, since almost all new ones seen today use LEDs. The street lights outside my apartment (I live on the main street of a small village, so I see the streetlights come on every evening at roughly dusk) are probably LEDs, having replaced the old mercury-vapor lights some years ago. One advantage the LED streetlights have over the MV and certainly the incandescent lights is they do not wear out nearly as often as MVs/incandescents. It wouldn't have surprised me if the latter (incandescent) bulbs had to be replaced every few years or so, as these bulbs would stay on from dusk until dawn seven days a week. I remember seeing a few old incandescent streetlights burn out with a bright flash as soon as they were switched on; needless to say, these bulbs were probably replaced with LED bulbs as soon as possible.