coker98 New member Aug 6, 2009 #1 Everyone, What is the size difference between a 150w, 250w and 400watt double ended bulb? More importantly, are the 250w and 400w relatively close in size? Close enough to switch in fixture by just accomodating a ballast? Thanks,
Everyone, What is the size difference between a 150w, 250w and 400watt double ended bulb? More importantly, are the 250w and 400w relatively close in size? Close enough to switch in fixture by just accomodating a ballast? Thanks,
