Dave Groomer
Well-Known Member
I just upgraded my Mars 900 with the Pro II Epi320. The difference in light penetration due to the reflector design is noticeable after only a couple days. My Mars lights have always grown very bushy plants. They will get yellow inside until I trim them (usually round day 30 of flower). Since switching to the 320 a few days ago, the inner leaves are starting to turn green again. It will be interesting to see yield increase.