Ts1000 x2 vs fc3000

you get more PPE from the fc3000. it is more efficient. do you get better distribution of light in such a way it can overcome the 150umol/s difference light production? i don't know for sure, but i'd guess no. 2.3 * 300 = 690 umol/s produced by ts1000 2.8 * 300 = 840 umol/s produced by fc3000 (i may have used a tenth lower than what mars advertised. they tend to round using absolute value, lol. relative to 9-10sq ft that the fc 3000 300w would cover for photoperiods (150% of that area for autoflowers), 150umol/s is a good chunk, imo. unless the shape of the garden is rectangular enough to cause the fc3000 to have severely limited corners or edges of grow area, the fc3000 is the way to go. less so for autoflower garden, because it could cover much more space at 15sq ft. shape of the area is more likely to favor 2 ts1000. but those are not wide lights, so any square-ish area i'd still lean toward the FC3000. on top of all that, it'll last longer and per umol/s of PAR light produced is cheaper over its lifetime. it will also generate less heat -- this may or may not be a positive, but more often a positive.

I grow with Mars-Hydro 1 FC 3000 ( 3gr/W at 2.85 umol/j ) will do better than 2 TS1000 ( at 2.3 umol/j )