Got the light from a online store, called El Pato lights don't know if there still around.
Ya it's just a can with some LED's cramed in, El Pato lights is still around I'm sure you could order one and see it's internals.
Hope you enjoy here's what the ratpack looks like right now.
1958 Schwinn Hornet
1951 Columbia Five Star
1948 Schwinn Spitfire
1953 Monark Built WeternFlyer
1948 Schwinn DX
1952 J.C Higgins Color Flow
2000's repop Pea Picker Kustom
1939 Elgin Twin 20
Just got this perfect Buzz Bike Eliminator, from the original owners family. He sadly passed away last year, vary thankful for the opportunity to preserve this piece of Americana.
I used all my period correct aftermarket parts on it, once I got it home.
The original owner was a...
Here's mine 1940 Fleet Wing badged 4Gill
Big thanks to @CWCMAN & @szathmarig with parts and knowledge ! They helped bring this corpse back to life.