I am going to be removing a fixture that takes 2 f20t12 lamps from my friends house on Thursday, it has an old keystone rapid start ballast from the 90s that still works but buzzes quite loudly. i had this preheat ballast laying around that works good and was NOS when i got it, i used it for like a year and removed it. sadly where it was located was damp and the label kind of got warn off some. i made this note card with what i believe is the correct wiring from wiring them in the past and what I can see on the label, i don't want to blow anything up so i am just asking if this looks okay before i do anything.

Yes, you got it right!

thank you.

Looks correct to me

If I were to be  really picky, it's L(ine) or P(hase) and N(eutral) for the supply, not + and - which is DC. Otherwise it's fine