jonnynobody
Well-Known Member
Not sure if you're still around these days but I've got some info that may help from my last grow after converting to all LED. I ran full power from the middle of week 3 in flower and fried up some leaves pretty good. Prior to that I had the power at 50% and I don't think the canopy could have looked any healthier. The power increase actually hurt my plants because they didn't need it at that phase of growth. After flower set was complete and they began the thickening stage around the middle of week 4 I juiced all the lights up to full power without a problem. The plants took it and the flowers developed nicely without producing any more damage to the foliage. I plan to run the lights at 50% until the middle of week 4 next cycle. I'll increase to 75% for a few days then to 100% for the remainder of the flower cycle. It seems like once the flowers go into thickening stage the plant can take a lot more light than when flower set is still unfolding.was wondering if I could pick your brain again, after following your instructions, almost a month ago, by raising/dimming the light the problem went away. I now seem to be having the same problem, day 36 from flip, they are now 14" from the light (sf2000) with is at %55 power. I've got a few similar pics over the last week that show its getting slightly worse. I'm happy to provide more details/ photos. Just didn't want to mess with your thread too much. Thanks
That sf2000 kicks out a lot of light. 14" is pretty close for one of those rigs even at 55% power. They also emit a lot of heat due to how tightly the diodes are packed together on those boards. Heavy light intensity coupled with a high amount of heat output close to the canopy is a recipe for unhappy foliage. Even in the flower room my boards are 36" or so from the canopy. Any closer would just fry my leaves. In a nutshell I'd recommend running the board at a much higher distance. Week 4 or so crank up the power to maximize flower production after your flower set is over. Drop the board close to the canopy in the last 2 weeks of flower to finish her off. With more distance between the board and canopy you should see better results.