Works great still, Just in time for Halloween, see pic.
Original box and packing, see pics.
Box has wear from decades of shelf storage, see pics.
Black lights emit ultraviolet radiation and is invisible to the human eye.
Used in industry, nightclubs or amusement parks to make things glow.
And of course for the awesome hippie like far out posters we had as kids in the 70s! LOL.
My mom had a blacklite display set up back then for her carnival glass which glowed oh so cool!
Approx 4 hrs on the bulb, used it for Halloween then its been in the closet forgotten for all these years.