So, they're light bulbs .... and they ... make light... and light up a room when it's dark so's you can see.
Cool.
They had those before I was born.
And up until a few years ago they cost about
$1 each.
And they came with all different light ratings in watts, and you could get them in different hues like soft white (my favorite).
They even came in different colors.
But everyone still bought the white ones.
And they turned on and off with a switch. Or a clapper.
Things were different back in the good ole days.
