[DonRotolo]

It could be. Bi-Pin is a specific base configuration - the pins are such a diameter, spaces as such, and such long.

Through-hole merely means there are 'wires" coming out of the bulb that will pass through a circuit board for soldering.

You can likely mount a bi-pin into a PC Board, but might not be able to mount a through-hole into a bi-pin socket.

Don