This question is why I bought a digital ballast which ignites both types properly. Better bulb life, smoother power, runs silent and cool.. So if you wind up buying a new ballast, go with it.
MisterE Reviewed by MisterE on . hp sodium bulb & metal halide ballast? will i damage anything if i use a 400w hp sodium bulb with a 400w metal halide ballast? anyone ever try that? Rating: 5