Ignition box or not!

Sounds like your talking about a Mallory ignition with the photo optic led light. Called the uni-light.
Mallory makes excellent stuff for many many people. The only thing about the uni-light is if the L.E.D. light fails, your stuck until a new L.E.D. unit is put into the distributor.

This same system is what powers my Harley Sportster. It just failed. Easy to replace.