ogrelung
Well-Known Member
Friend of mine is moving away and has a an aquarium hes leaving behind. I got to looking at its lighting and its got that AQ2 ballast with a couple mogul based lights with reflectors. In them are two dead MH bulbs. On the ballast it gives a long list of different abbreviations and wattages like 175mh and 175ps...what do these others mean? would it run an HPS as well or will I need a conversion bulb?