undertai
07/27/2006, 06:04 AM
Has anyone tried the 175w DE bulbs? I came across 1 for free and would like to try it out over my tank.
But would like to know if I would have to get an HQI ballast or just run it off of a regular M57 ballast.
But would like to know if I would have to get an HQI ballast or just run it off of a regular M57 ballast.