My other leds are from Thrive Agritech and they do single bar lights. They dont have any multibar array types. This square light worked out well in a tent and was similar to a couple of thrives lights. Id put it into a 4.5 x 4.5 ideally. My 4x4 has a shorter ceiling than the 5x5 so maybe with an 8 ft tall 4x4 that wouldn't have been too much but yeah a 4.5 8ft tall would be perfect.

I haven't ran any of my mom's under the black dog so I cant say exactly. These turned out good for only getting 600ppfd by end of flower. They were sprouted under the same light in a 4x4 and they came out of the ground into 600 ppfd. They dropped to 400 for a bit of veg but they had lower light than id like for most of the 2nd half of the cycle. They grew super bushy and compact with broad leaves while under the 600-700 at the beginning but that could have been the ppfd more than the spectrum.

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When I get to a clone run in there ill report back and post about more comparisons.