Answer: [[It's a "wireless remote streetlight switch" used by a local amateur astronomer as an amusement (but, of course, never, EVER to actually use!). Apparently, streetlights have a photosensor, and if one has a small laser, a nice spotting telescope, and sufficiently rigid mount, one could (but never, EVER actually would!) lase the photosensor and shut off the streetlight.]{style="color: #ffffff;"}]