So about the cabs…
All cabs have the same length and width, 17.5" x 22.5", so 2.75sqft each. That gives me 5.5sqft for veg and 11sqft for flower. The flower cabs are all 30.5" tall and the veg cabs are both 15.5" tall. So that’s a total of 35cuft. I have an 4" S&P 160cfm inline fan that’s set on low (120cfm?) venting the cabs. The fan is in a box up in the roof and I also put a carbon filter in a box to make it “inline”. The exhausted air recycles back into the same room, into the other built in wardrobe.
The lighting is a mixed bag of Quantum boards and 560mm Bridgelux Gen1 EB strips. Both veg cabs have 4 x 3500K EB strips, running on Meanwell HLG-120H-C1050A drivers. The right veg cab is wired series/parallel for 24-48w and the left side is wired in series for 48-84w. I’m still experimenting, but last grow I was running about 40w in the veg cab (which I actually ended up flowering about 6-7 small plants in!).
The right middle cab is running the first light I bought from HLG, it’s 2 x QB304 3500K boards on a HLG-120H-C1400B wired in parallel, it can hit 165w but I ran it at 80w on the previous grow. Once I get stuff dialed in, I’m hoping to run 100w per flower cab for 36w/sqft.
The two bottom flower cabs are both running a single QB288 3500K. One is powered by a HLG-100H-54A and the other a HLG-150H-54B.
Finally, the left middle flower cab has 4 x 5700K EB strips running on a HLG120H-C1050A. I wanted to try flowering with the 5700K spectrum just to see for myself the difference between say 3500K and I have a few spare strips if a decide to swap them out for another spectrum.
You might notice I have some vertical lighting in the lower right cab. That was an experiment, I put one EB strip in each corner of the cab for supplemental lighting. I didn’t really like that setup, it kinda ate up some floor space because I couldn’t cram plants in the corners, so that idea has been scrapped and I’ve already removed a couple of strips to use elsewhere.
No doubt I could have saved some money on drivers by running more than one cab’s lights off of one driver, but that didn’t happen.
I have an 12000BTU reverse cycle inverter mini-split AC which I’m keeping set at 70F and the temperature in the cabs in about 77F. Humidity was a problem last grow, ended up with a little bud rot on one plant… told you I’d made every mistake possible, haha. So I bought a 30 pint dehumidifier and set it to 50%, problem solved. Currently I don’t have the dehumidifier running and it’s 70% RH in the cabs, great for veg, the plants are the healthiest I’ve ever had them looking.
Well, that’s about it on the cabs/light/enviroment… no pics today, sorry, reasons I won’t go into, but I’ll put plenty up tomorrow.
DrDank