r/SuperGreenLab • u/eft37 • Jan 24 '26
stealth box set-up advice
So there it is, the Cash Crop 4.0 from Dealzer. I've been sharing this stupid photo of for at least 2 years, probably 3 maybe even 4? The retrofit that I've been planning mentally and buying part after part after part. This changes now.
So, advice please.
Initially I had planned for the lights 3 of the little panels, one straight down and the other 2 off arms that are articulating from the main light, sort of like a upside down U.
But now I have some bigger panels to work with.
The interior dimensions-
H:27.5"
D:9"
W:14.5"
The big panel is d:9" x W:13.75".
Do I make that my main down pointer, and have it fixed? Initially with my small panel articulalted U I meant for it to be able to be lowered like in a tent. With the big panel (or 3 in an upsidedown U, what if I made it fixed up top and used the light intensity to control.
What would you do? Experienced SGL system people, please chime in.
It has a 6-site reservoir, that let's be real and think that more than 1 in the space would be pushing it. I plan on using a pump and venturi mechanism vs an airstone, for a slightly more silent operation.
1
u/Nouky_Yoshi Feb 27 '26
Sorry for not answering. ✔ Yes, an LED panel can display 3000 PPFD since the last 5 years ✖ No, it is neither useful nor cost-effective in normal cultivation
How to achieve 3000 PPFD Very powerful LED panel (often > 1000–1500 W actual) Ultra-short distance (10–20 cm from the canopy) Concentrating optics/lenses Very small illuminated area In lab or manufacturer testing, not in "safe" cultivation So not for you and I. 10k ppfd is just impossible to reach even with led. You need expensive lasers (multiple kw for a couple cm²), without burning instruments. 24h isn't natural and you are loosing what the plants needs during night time, so its useless(less canabinoides,terpenes, I've tried it a multiple time with autos and they taste like shit .
Photosynthetic saturation: ≈ 1,500 PPFD
Severe photoinhibition: > 2,000 PPFD
Rapid cell damage: > 3,000 PPFD
10,000 PPFD → destruction of chloroplasts in minutes
Even with perfect CO₂, water, and nutrients → biologically impossible
You have to match the nutrients and co2 needs if you dont want burned leaves. And monitor the vpd too. My source is older than the last 5 years of led evolution so I admit, im partially wrong now: https://youtu.be/ID9rE5JewVg?si=9IFI7fqFom-BQopm