Hey fellas, I am a new grower. I have two harvests under my belt. I used the Mars blurples for both harvests. Unfortunately, I didn't find this site until I had already purchased 4 Mars 300 units. I was actually really happy with the results. I used 4 Mars 300s in a 5 x 3 tent and pulled 9Oz from 4 plants. (monster cookie) Believe it or not I was at the scrap yard and found this high bay cob fixture in the contaminated alum pile. I bought the fixture for $40. I knew at least the drivers would be usable if nothing else. After a little repair work in the wiring the unit fired right up. It looks like a pretty high end industrial bay light. It's bright as allhell. It's a much whiter light than these Mars blurples. I found a link to an Adobe file which is an information sheet on the units. The sheet says that the color of the lights is "cool white" I'm not sure if it's 3500 or 4500 or maybe 6500. I have know idea how to tell. I was thinking of taking the unit apart and rearranging the boards to fit evenly in my 5x3 flowering footprint. What do you guys think? Is it a better option for flowering than the Mars? With the "cool white" description for color im guessing it's a 3500-4500 k color. Do you guys think this will work better than my blurples for flowering? Thanks for any input.