hello. just wanted to let whomever needs to know, that they can get a headlight bulb for the simplicity sovereign 3416 here: http://satco.iqlight...-dc-c-ges-c.asp, for under $5.
ive discovered this thanks to littlemarv, after reading everywhere that simplicity no longer makes a bulb and that i would have to make customizations to the wiring and socket or some shenanigans like that. hogwash. this bulb fits perfectly. like it was made for it.