As you can see the 80 CRI plant is carrying more weight, the supported branches are even bending sideways now. Since the 90 CRI plant got stressed out from too much light and seemed to shut down a comparison of yield would not be fair. My conclusions so far are that the 90 CRI is a better veg light than the 80 CRI. Was thinking of doing lab tests but I don't know if it is worth it since I had plant health problems.