http://www.progressive-growth.com/pr...-600dig&cat=28

There are a few companies that make them and the price is falling fast. In a few years they should be selling for about the same as a regular ballast. I hope.
Zandor Reviewed by Zandor on . Set up for 30 plants I was curious as to the setup I would need for a 30 plant or so harvest. I would plan on using 1000w bulbs. thanks Rating: 5