YOU CAN RUN A MH CONVERSION BULB IN A HPS BALLAST AND A HPS CONVERSION BULB IN A MH BALLAST. NOT IN BOTH BALLASTS.

SO, IF YOU HAVE A HPS SYSTEM NOW, YOU CAN BUY A MH CONVERSION BULB, AND RUN IT IN THE HSP BALLAST. BUT IT STILL MUST BE THE SAME WATTAGE.

THAT SOUND RIGHT?
BOYZNUS Reviewed by BOYZNUS on . MH and HPS conversions So, if I understand this correctly.... They make MH conversion bulbs that can be used with both MH and HPS ballasts. and They make HPS conversion bulbs that can be used with both MH and HPS ballasts. Is this right? So, if I wanted to use MH during veg and HPS during flowering, I could buy a MH system and an HPS conversion bulb, or I could buy an HPS system and a MH conversion bulb, right? Rating: 5