I believe there HPS ballast orientated. Its neither one or the other like u stated, But what i have seen there HPS. A switchable ballast is out of the question becuase they use either one or the other and its 2bulbs in one. I think people have noted that these bulbs arent really all that good, they have high output on the spectrum where u dont need it and where u do. If u havent gotten anything yet, i would go with a switchable ballast, there more $$ but two in one. so kinda less. and u will utilize both bulbs to the fullest.
JackdaWack Reviewed by JackdaWack on . Which ballast runs these bulbs? I asked this question in the which light post below this one but no body replied. So, I re-posted as my own thread. So, just got my license in Colorado. Prices at the dispenseries are insane. I assume it's the same everywhere but here if you sign your rights over to a grower. They MIGHT give you a small discount. Like $4 off a $20 gram. So, For years I've kept iguannas in a small room in my home. However after 17 years the two monsters are fading quickly. Time to convert the room to MMJ Rating: 5