Maxsisun mf1000

sq rt of .4 is about 63cm x 63cm.. get that rust, trusty calcumacheater out.

214umol/s (efficacy x watts from specs) So it just depend on the space you try to cover. 1 autoflower, i'm certain it can do it. I'd stick to 1 plant, and not too large Autoflowers - 18 hours a day -- add another 8% to area if you do 20/4 approaching .4m^2 and still be around max DLI (can probably go slightly larger but not far) Minimum DLI - about .67 m^2 ... again, erring slightly on small side. So, stick to an area of about 0.4meters-squared and it should be nice dense buds... co2 needed to provide more light and tighter control of environment needed to maximize that added co2. ______________________ Photoperiods: just in case you ever do a 12-12 schedule with it.. .25 M^2 will be up near max DLI with ambient co2 and not too far off otherwise environmentally. Maybe .5m^2 for minimum of about 21 DLI... 18hours per day... increase that about 8% if you go 20/4 schedule.