Anyone else on here have experience with using COBs in a vertical setup?
I think its only feasible with a very large quantity of COBs. Right now I use 12 COBs to cover a 4x8 space and they do it effectively. You could just angle them at a wall of trellis and I've seen really good results from that, so theoretically my current light just angled downward. But if I were to go vertical I would want to build towers of COBs, sort of mimicking the pillar of light created by bare vert bulbs. Again, I just don't see a way to get really effective coverage doing that without using an egregious amount of COBs. You could make them 4 sided for the sake of simplicity and get okay coverage but IMO 6 sided would be ideal, better overlap. So thats 6 COBs, then you have to decide vertical spacing. For simplicity sake lets say you do 12 inches on center. Right now my ladies are 6.5-7 feet tall(not including the 5gal buckets they're in) so lets say you do 5 levels of COBs to get roughly 5 feet of solid coverage a 4 sided tower would be Qty:20 COBs 6 sided tower would be Qty:30 COBs per tower. Then for a 4x8 I would probably want to stagger 3 good size plants and 3 towers? Not sure, never done vert. But thats 60-90 COBs
I don't think heat would be an issue if you made the towers sealed and had a fan at the top and the bottom of the tower. Theoretically pushing air up through the tower, across all the heat sinks and out the top.
There are things you could do to reduce the quantity like stagger them or spiral them or space them differently, but ultimately all of those things are a compromise to the amount of coverage you get out of it.
Which leads me back to tilting my current horizontal light on a 30* angle at a wall of trellis. I could absolutely do this but I just started this new setup and would really like to just get it dialed in. Works great for what I'm trying to do.
How much greater are vert yields?