Currently have a 400w magnetic ballast/HPS light. Use Son-Agro 430w HPS bulb and a 400 w Conversion MH. New Ballast is going to be Lumatek LK600, dimmable adjustable. I know I can run a 400 W HPS or MH as well as 600 watters, but the question is: Can I run the 400 w conversion MH bulb in it? If so, I would use it for veg and switch to a new 600 w HPS bulb for flowering.