I’m using the AC Infinity IonGrid t22 in a 2x2 tent and I’m curious if anyone else has used it and has tips for light height? I’ve looked on the manual and it has recommended settings for 12, 14, and 18 in. But I’m just not entirely sure where I need it to be and what ppfd I should be looking to hit in veg for my autoflower.
Photo taken today.
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I I would place your light about 18” above the leaves and on #4 for now. Plenty of air circulation
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I’ve not used that light but many autoflower growers employing 20 hours of daily light, (I do 18/6 entire grow) may strive for PPFD levels around or below 700 µmol/m²/s during the peak bloom phase. When blooming feminized cannabis, they may utilize PPFD values closer to or upwards of 1000 µmol/m²/s.
Your light distance you gave 3 levels are all good it depends I think on strain and how it reacts to the light intensity. Blast your light at 100% during flowering
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Thank you for the help I appreciate it!
If you have an I phone you can get the photone app and set your light with the DLI. 
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