How far do you XGS190 users keep the light above the canopy? And is 18" above better than 24" above?
And will it cover a bigger area if if its 24" vs 18" above ?
Also, is the coverage the same as RW150 ? which the optimal would be 24" x 30" according to area51 website.
And how deep does it penetrate? 3 feet? 4 feet? And does one XGS190 compare to 190w HPS? or maybe 400w HPS ?
With my XGS 190, I do 36" for seedlings, 24"-30" in veg, and 18"-24" in flower, depending on the strain.
The RW-150, and the XGS-190, will give you similar coverage. That being said, the RW-150 will give you much better canopy penetration, due to it's more direct angle lenses. The XGS is the best veg light I have ever used, but when it comes to flowering, it's okay, but not great. The deep red diodes, and the direct lenses, make the RW a much better light for flowering. It will also do a good job vegging, too. I rank the RW as a better all purpose light than the XGS.
In term of a comparison, two RW-150's, will surpass the yield of a 400 HPS. Four RW-150's are a suitable replacement for a 1000W HPS, and can cover the same area (4'x4'), with a comparable yield.