I picked up the pictured item in a lot of other photo stuff. Does anyone recognize this? My first thought is that it is a slave flash sensor, but the prongs on the back are almost the same as a household electrical plug.

[img]https://kyp.hauslenda

Flash slave with AC contact (do not plug it into AC).  AC contact plug is for the more pro flashes.  Remember these going for $9.99 in the old days.

I picked up a flash unit (I thought) with that plug on it which was plugged into a cigarette lighter adapter.I connected it to the socket in my truck and it turned on a bright,steady light.
I thought,how can this be?...LOL.
I then plugged it int

Thanks for the information.
Next question: Does anyone need one?