I read a recommendation or two, here on the forum. I purchased this model and have had it installed for about three weeks, since 9 September, 2021. I had a crop already flowering and I can postively say, this is the best light I've used yet. It is even better than both my CMH/LEC assemblies. I can't beleive the penetration of the canopy (disclosure, I do defoliate).My Sativa is glistening with trichomes and I still have at least 18 days to go before harvest!