For anyone using six 96s in a 4x4, here is a quick & dirty starting point for easy propagation thru harvest intensity:
Put your six 96s in the layout i posted earlier, hang ~36”, @ 120w/light:
For prop - move one of the middle ones closer to the center of tent, turn just that one on, use your light meter to adj position so you get same perimeter intensity near all walls of tent, should be 100-150 ppfd across footprint, adjust dimmer to nail. Use this from cotyledons to 2nd true node, then switch to,
For early veg: put single light back to original position, turn on both middle lights, this should give 250-300ppfd across footprint, adjust dimmers to nail. Use this from 2nd true node to 6 true nodes, then switch to,
Mid-late veg: turn off middle lights, turn on 4 corner lights, this should give you 450-550ppfd across footprint, adjust dimmer and/or ht to nail. Use this 6 true nodes till end of veg (max 600 ppfd).
12:12: drop lights to ~18”, continue at 120w, turn on all 6 to get ~1000ppfd across footprint, adjust dimmer 120-140w to nail. Keep light at 18” gap thru harvest...
If you use a lux meter to approximate ppfd:
put your lights-frame together, adjust wattage to 120w, measure lumens at 18” height around your tent, divide lumens by 67 to get a ppfd approximation, should be close to my ppfd measurements in table for six 96s. If not similar, take lumens meassured and divide by my ppfd at that location to get your meter’s ppfd conversion factor..
All the significant mapping info i have posted on the 96s is posted/linked in post # 5, at
https://forum.grasscity.com/threads/qb96elite-v2-no-bs-information-only.1521830/
Enjoy