Just make sure if you are going from a full spectrum light like a CMH to a partial spectrum light like a COB you supplement far red and UV light, or you will see a decrease in quality.LEC kicks ass for that situation, but if you want better and money's not a problem then COBs for days out preform almost everything. I'm pumped for the Chill grow panels. 2.8umols/J. Just fantastic.
of course but if you run 90cri you don't really need far red as it has it, UV is just a t5 away if that's important. To me adding co2 is a higher priority.Just make sure if you are going from a full spectrum light like a CMH to a partial spectrum light like a COB you supplement far red and UV light, or you will see a decrease in quality.