3 ft away? Just curious, where did you hear to do that light distance? That's very far. When I was growing with the HLG 100 V2 I had it 12" away from the top of my plant when in flowering.
Edit: How old is the plant? If seedling or early veg then it should be higher than 12"
Yes at 34“. The entire grow. It’s currently 7week of flower Gelato (auto) In a 2x2.5 GGT When I went to 32 The leaves would curl down
Hlg told me 34-38’ when I first got it. My plant was starting to flower but last week veg maybe. I was adjusting it lower to see how the plant reacts. And it’s been it every since. Ive lowered its in flower but idk why the signs. Or am i being to cautious? Them i don’t want to mess up progress on her. My 3x3 is on 12/12 first week flower and it’s 43” away turned down. And not in the middle. And it stresses the leaves where they get 3/d looking and new growth is very thin. When I move the pot back. It thrives 🤷🏽♂️
@Revolutionary Gnosis Interesting. Yeah I usually do 12" away when in flowering. I did a PAR test on that grow light and this may help you determine light distance: