Ballast resisters

The 1.2 is more inline with what the electronic is supposed to be used with. I have 3 converted to electronic, all run a resistor between 1.2 and 1.4 with no issues. heat is a by product of its function. I've never seen one get hot and melt the plug.
Anybody got any part numbers on which one to order. I just bought one from rock auto and it is the one that measures .8 ohms it must be for a points set up.