What's new
GrowWeedEasy.com
You're browsing as a guest. Sign up to join the conversation, share your grows, and get help from thousands of fellow growers — it's free and takes less than a minute.

What about simulated sunrise and sunset for indoor growing?

  • Thread starter Thread starter Guest
  • Start date Start date
True what's being told to you, sure you'll get buds but the best buds come from intensity of that light autos decide when to flower on their own time clock without enough strong lighting mostly you'll get fluffy cotton bud if that.
 
Thanks for your input! Appreciate it!
Yeah, you are right, autos will do best with as much light as possible.
I use 20/4 on and off, next project will be 24 on.
Was thinking if you use a schedule of 18/6 or 20/4 the smooth change in light intensity and temp lowering/rising would be good for autos.
Maybe less of a chock for them?
So do you think this sunset/sunrise mode is working only and best for photos? Or is it just a sales ploy?
The mode is controlled from an mobile phone Bluetooth app, still in beta... don't like that.
Was planning to upgrade my LED lamp driver (Meanwell) with the new driver (Inventronics) that has the new features and 20 Watt extra power.
It also has a 4 step dimmer and that sounds great. It fits on my LED just fine but will I notice any improvements on my grow?
What do you think?

Best regards,
madman
 
Hi madman...I am also curious about sunrise/sunset for indoor plants. I read a short piece (and now can't find) that 'plants' in general do not need a protracted sunrise in order to wake up and be ready for photosynthesis. One of my lights has the Casambi light control system with a sunrise/sunset feature. It lasts just a few seconds both ways. Is it necessary? Idk because I have a tent with an LED light without that feature and the plants growing underneath it don't seem to mind.
 
Last edited:
Hey there, madman ,seems to me that unless you are able to shed upwards of 3000 ppfd, gradual increase or reduction would only serve to reduce the DLI or daily light integral. To borrow from the knowledgable and experienced SoOrbudgal, strong light = strong buds.
 
Really " longer and fatter than my underarms" wow perhaps you could post a pic of those mammoth colas next time from your grow we like bud pics of a successful grow.
 
Well now SoOrbudgal, hold on I just wonder about pics of those underarms! At my age my underarms are sagging so I’m trying to get the picture. I’ve been told that I have arms like PopEye, so I’m just hoping for some buds the size of my for-arms. We do enjoy some good bud picsthough! But madman, excellent info. You’ve posted. Just wondering why you would want to effectively reduce the amount of light after an overwhelming success? What I mean to say is unless you can generate the light energy equivalent to the sun for your plants, I have to doubt that fading in and out would improve things for you. I do believe that Dr. Bugbee addressed this issue in one of his YouTube lectures.
 
Now i don't want to be reading or hearing about a murder on the national news cause of these photos.......man i'd feel terrible LOL Outstanding way to grow MadMan really lovely :)
 
madman, using supplemental lighting spectrums can help the plants 'go to sleep, and then wake up' more quickly than just an 'on-off' cycle, but I don't think the gains are worth the investment for a hobby grower. I use supplemental 660nm diodes for flower and to also help promote 'stretching' if needed. The other suggestion I could make would be to look into daily light integral(DLI) and use that to adjust how 'much' light the plants will tolerate.
 
As was posted above, I believe it has been proven that photosynthesis is highest with maximum light. I agree, if I’m not mistaken, it was Dr Bruce Bugbee or Dr Coco who quoted the research. It would follow that a slow rise and fall of light levels would only lessen the overall amount of light. If your pushing the DLI limit this might be helpful but otherwise would just be less light.
That said, I think the best reason to run sunrise/sunset is to smooth out the spikes on your temp and humidity which usually occur when lights come on and off. That sure happens in my tent. These are not happy times for your plants, they’re not fond of that shock. Just like when you open the front door to leave in the winter and get hit with that blast of -20c cold .
As soon as I can save for a better light controller with that feature I will be trying it out.

here’s some pics of my under arms 😝
 

Attachments

  • photo162702.jpg
    photo162702.jpg
    2.8 MB · Views: 2
  • photo162703.jpg
    photo162703.jpg
    2.8 MB · Views: 3
  • photo162705.jpg
    photo162705.jpg
    2.9 MB · Views: 2
Bluey is on to something. I ended up not using the system I mentioned above. My understanding is plants don't need a wakeup to photosynthesize.
 
I agree OldManGrower.
There is some interesting info regarding IR supplementing. I have read a 10-minute on IR mode, then a 10 min off IR, then 10 more minutes after lights off can influence flowering. Something about putting plant to sleep mode quicker.
Perhaps due to the red-to-far-red ratio factors.
 
Back
Top