There are studies which indicate that a rest period to UV light is beneficial, as opposed to constant UV. Basically the plants build up a resistance to UV light without the rest periods, and the desired effects become mitigated.
However it I believe ther is evidence to support using at bod and eod as well as mid day. Intenisity and ratio the sun does not simply turn them on off but there is a gradient and ratio to orher specra, this varries based on geography and time of year of course.
That was my first inclination as well, but the statement by HLG saying not to do it because it will cause stretch has me wondering.
That's only there because they are not included in the boards yet IMO. No worries. It will cause stretching on small plants & the kind you want in flower whole time.
Sure, but UV is also strongest during the mid day hours, with it's peak at noontime. Adding UV during the bod/eod wouldn't seem to be mimicking nature.
What color is the sky after the sun sets? After it is red?Sure, but UV is also strongest during the mid day hours, with it's peak at noontime. Adding UV during the bod/eod wouldn't seem to be mimicking nature.
No idea. I'm partially color blind. You tell me.
Try for example (of white watts) 10-20% reds (ideally a mix of 630 and 660, and make sure that its the output your calculating over, not the electrical watts in) and then you match 660 to 730 on 4:1 basis, keeping far redon separate channel.
Well guessing for you its some form of off grey.
I know this is also standard but for simplicity sake I am beginning to believe seperating channels that are as close together as red and fr is not really practical for most. Not sure the benefits are diminished enough to justify the effort? Having them on a single channel with the ability to seperate in the future if desired would probably be more economical and as I belive it is more important to have the color than the exact ratio that is perfect I think this offers a better starting point for the hobbyist grower.
i think your way over for amount of far red. If you read back last three or four pages i put up the formula for how to calculate times for end of day treatment. i wouldnt add more than a few percent during lights on. Unless you have the photo red added aswell.
Again I am using this post to explain my perspective.
half the far reds? i agree especially if its all from the same strip, spread wont be right and will lead to uneven cannopy and stretch. On baking things into the same channel, yeah sure but it seems almost harder to get that balanced. unless you do a custom strips with a set rate of far red, photo and sixthirty reds. but then your loosing the ability to do eod and if you wanna up far red to stretch out some of those indicas that get too compact. but definitly, photo and sixthirty red can and should go on the same strip. and ninety cri white eliminates the need for sixthirty supplement as they allready peak around there.
hey if its working then nevermind
did you see any extra strech under your far red strip? or faster ripening?
