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3500k is the color temperature of those LEDs. This is closer to red than blue. Blue is better for vegging, red is better for flowering. If using for both I think you did the right thing by going with the 3500k.

I work in IT and I've gotta say raspberry pi's are sweet. This is great.

Point the vents you are using away from each other.

That's a pretty good idea.

I like sea of green for small spaces if plant count is not an issue.

Quick question. I have a build planned for a cabinet I have made. I had a thread about it here https://www.rollitup.org/t/led-diy-build-help.927250/ but did not get much activity. I was planning on using Two 44" 5.886 profileheat sinks to mount (4) cxb 3590's 36v per. Looking at this thread I am...

As long as timer and surge protector can handle what you plug into them you will be fine. You can run into problems when overloading them.

Nice handywork

Ya don't wire just one unless that amperage is covered by the cob (Seems these cobs have a max of 2760 mA). Those directions must be for parallel wiring. Personally I would get a new driver and wire them in a series. You could do parallel but I would suggest resistors inline on each cob if you...

Looks like the output voltage of the driver is 48v. The cob needs somewhere near 32v. (DO NOT Try the series with just one cob. Just looked at specs and single cob can't handle that current). Looks like the driver cannot handle more than 1 cob (in a series). Just looked quick but probably your...

Have you been training your past plants? SOG has value if u want quick flowers and plant count is not a limit. Usually would not be doing any training with SOG. Maybe just defoliating lower branches and lollipopping your colas. 40 g a plant would be pretty incredible. With SOG you could go...

What are y driving them at? Have you played with how close you can get them to canopy at lower amperage?

I have a similar sized box. A little bit larger. I built a chamber on the side of it for filter to sit in. Was getting in the way of lighting.

Growmau5 on youtube. His videos are great. Very thorough.

Could have a hole in the reservoir somewhere. If that's not the case the pump might not be shutting off / closing. Based on your diagram if gravity is allowed to push water then it will flood through the plant pots.

All the charts I have read seem to show the cons being more efficient at lower drive currents. Fluctuation doesn't seem too bad but at higher amperage there seems to be higher heat to photon ratios. Check the specs on those cobs at different drive currents. Also the distance to the plants may...

I would say no if your heatsinks are doing there jobs properly. It does look nice though.

Try black as ground and yellow as +12v (positive). PC fans frequently use green and blue as sensors. A lot of them can run at different speeds based on their motherboard.

I was looking at Kind a while back and I have gotten off that wagon. I do think they are one of the better LED light companies but check out the DIY stuff. I have a thread of my own for the light I am going to make. It will save you a ton of money on a 1000w light.

Either would work but I suggest the reservoir. If u mix in the control bucket and it needs to be topped off by a plain water reservoir then your nutrient levels will be diluted. Mixing in your reservoir will keep your nutrient level the same all the way through. Much easier to maintain.