MH Ballast help

[BCOrchidGuy]

Don't know how much you know about electricity but one thing I do know is don't mess with a capacitor with your bare hands. There is a way to discharge it but I can't remember what it is, someone else will post I'm sure but the capacitor holds the charge so even after you've unplugged the unit the capacitor is still holding enough of a bang to make your day not so great.

Douglas