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?