ballast question

seschaefer

Member
I was wondering what ballast you all would recommend. I am looking into the workhorse ballast, but don't know if i should over power or under power the VHO lighting. I tihnk i am going to have about 150W of bulbs, but the ballasts come in 140 or 220 watts. Which one should i use.
thanks for the help
-Sean
 
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