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Spot on. There are some very successful organic LED growers, but in my (admittedly limited) experience, hydro is more forgiving.

Maybe so, but it doesn't hurt me to help, so no worries, man.

As long as you're checking Instagram, you might want to take a look at some of the LED manufacturers' pages. They repost a lot of their customers' grows - so you don't have to hunt as much for good content. https://instagram.com/fgi_lighting?igshid=1f7i28ojb0zcm...

I applaud you on overcoming your OCD for the sake of pragmatism! I should probably do that more often.

Rad. 4x4? Man, I'm just way too OCD about symmetry to use those four-cables-to-one-carabiner hanger thingies (that's my highly technical description). I can see the upsides, but if they weren't hanging perfectly square it would irritate the piss out of me. Anyway, congrats on the new lights!

https://www.rollitup.org/t/from-des-to-leds.948046/

What's your budget?

https://diyleduk.com/

While we're on the subject of heat degrading LEDs, I'll throw in my unsolicited pitch for actually using the dimmer. Many here like to crank it and then simply adjust the height of the fixture, but that really isn't the most prudent (or efficient) approach. Peeps get excited about cutting-edge...

Same. I just don't look at the diodes.

Either way, he'll be off to a good start, running some HLG goodness!

This is also an excellent idea! And it means you still have light for the plants if one board goes out (not something that's likely to happen, but insurance is always nice to have).

Just one board for a 2x2, brother! My recommendations were for the larger spaces. And yes, if you can afford the R spec, go for it! Here's the driver for just one board (v1 or R spec)...

Ahh, I see. Yes, 3000k is a very suitable spectrum for full cycle, seed-to-harvest growing. I veg under 3000k myself, and have always been very happy.

You could definitely light a 5x5 for under $600 if you're ready to DIY. Six of the v1 QB288 boards in 3000k (with Slate 2 heatsinks from HLG), three Meanwell HLG-240H-C2100 drivers (or three HLG-320H-54 if you want to be able to push the boards to the limit), and some aluminum channel, screws...

I'd like to see a spectrum comparison between the 3000k Luxeon 2835s and the 3000k LM561Cs. They should be quite close, but I have also noticed that the new v1 3000k boards seem warmer - at least to the naked eye.

If you're willing to DIY, you can get more for less. Either way, an HLG300 is way more light than you need in a 2x2; it's more suited to a 3x3. What's your max budget for lighting?

Color me intrigued! New product from HLG is always exciting. On another note - a few of us have been wondering if the new 2835 v1 boards are a temporary product or if you guys plan to make and sell them long-term?

Oh, and I can't see you using 120w in that space anyway. I'd be looking for 80-100 watts, max - unless you expect to upsize your space in the future, and want a light that can handle it.

Yes, you could run two boards, at 60w each, on a 120w driver. But honestly, with only 3 feet of headroom, I wouldn't be looking at boards unless they're low diode-density boards like HLG's QB120/QB132. Strips are really your best bet though. Not sure what kind of strip options there are on...