Ca++
Well-known member
Thread was just getting interesting..
The LEDs seemed close together, compared to the quite wide spacing between the 600s. I imagine the PPFD jumped a lot.
Regarding the cutting of bottom branches, it depends if there is light on them. Eric seems to be working the top 18" of his plants, as he's an HID grower at this point. Enough thinning to see light on the ground in places.
There is another question. If it's not illuminated, why not? I don't suggest additional lighting to grow 1000000 more cuttings, but mid stretch, you can think about leaving a deeper canopy, if you can light the underneath better. From underneath, or the side. Just not interlighting.. as you won't want to clean it afterwards.
The biggest problem with lighting from the sides or bottom, is finding the lights to actually do it. In a commercial environment, it's even harder. As lights have to be suited to the environment. So leaves and water falling on them, while people are kicking them about, and tripping over cables.. It doesn't work.
At home where you work alone, around stand fans and extension leads, it's a bit easier. There are many garden flood lights from 10-50w and UFO's if you run a fan to them. Linear flo LED retrofits for close quarters, between tanks/trays. They barely need a leaf guard, unlike cobs that shouldn't be smothered. Though you can't water a linear flo fitting usually.
The LEDs seemed close together, compared to the quite wide spacing between the 600s. I imagine the PPFD jumped a lot.
Regarding the cutting of bottom branches, it depends if there is light on them. Eric seems to be working the top 18" of his plants, as he's an HID grower at this point. Enough thinning to see light on the ground in places.
There is another question. If it's not illuminated, why not? I don't suggest additional lighting to grow 1000000 more cuttings, but mid stretch, you can think about leaving a deeper canopy, if you can light the underneath better. From underneath, or the side. Just not interlighting.. as you won't want to clean it afterwards.
The biggest problem with lighting from the sides or bottom, is finding the lights to actually do it. In a commercial environment, it's even harder. As lights have to be suited to the environment. So leaves and water falling on them, while people are kicking them about, and tripping over cables.. It doesn't work.
At home where you work alone, around stand fans and extension leads, it's a bit easier. There are many garden flood lights from 10-50w and UFO's if you run a fan to them. Linear flo LED retrofits for close quarters, between tanks/trays. They barely need a leaf guard, unlike cobs that shouldn't be smothered. Though you can't water a linear flo fitting usually.
nice and happy plants
