What happenes when cannabis gets too much light?

[Northsouthcollective]

Anything upto 2000 umols/m2/second is acceptable (obviously during veg, much lower is needed). Plant yields increase linearly with light intensity, up to around 1500 umols/m2/second, but is not affected by the spectrum. Therefore, intensity alone is what is said to determine yield... This is from a recent study that was done in Canada by a 3rd party at an official company, not just plucked from thin air or word of mouth

[Wizard]

, note the white light bleached tips

[Bulls]

Okay I am back on that subject with some personal experience. I can confirm that too much light is actually stressing the shit out of young plants/cuttings. People should be very careful when choosing an LED for young plants. Some of the proper LED panels like Invisible Sun can be very powerful even on minimum setting of 90w. This time I've rooted my cuttings under a 4W bulb and once all rooted, they went under an older LED 100W panel I have which produces purple light. They definitely look better. That shows how the new quantum boards from Invisible Sun produce so much more efficient light for the plant(at the right stage) from 90w rather than the old purple panel which produces 100w which obviously the plant doesn't really need. It's all about finding the balanace and not waste energy

[Josh]

Okay I am back on that subject with some personal experience. I can confirm that too much light is actually stressing the shit out of young plants/cuttings. People should be very careful when choosing an LED for young plants. Some of the proper LED panels like Invisible Sun can be very powerful even on minimum setting of 90w. This time I've rooted my cuttings under a 4W bulb and once all rooted, they went under an older LED 100W panel I have which produces purple light. They definitely look better. That shows how the new quantum boards from Invisible Sun produce so much more efficient light for the plant(at the right stage) from 90w rather than the old purple panel which produces 100w which obviously the plant doesn't really need. It's all about finding the balanace and not waste energy

Well said bulls, I've also stopped using my led for veg altogether. This time they're under 300 watts of metal halide and loving it

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