Light question

Thanks guys, I think I understand now. My new timer from Anazon isn't working & I'm really struggling with the light leaks from this crappie tent when I trying to sleep.

I really don't want to poach someone else's question but a huge thank you GGS for the comment you made on this question. You just solved the mystery with a drama-lama wilty plant I have been struggling to make happier. Much gratitude, may the sun shine on your garden.

hours is part of the equation, but it's more than that. umol/s is photons per second of light in a specific range of wavelengths. photons per second, being the key. if you give a higher rate of photons you don't need as many hous of light to reach the 'maximum' your plant and evinronment allows per day. DLI, or daily light integral, is the concept here. studies show if you give the same amount of DLi over 16 hours vs 18 hours vs 20 hours it makes no discernable difference in yield beyond normal volatility. So, if you reduce 2 hours from 18 hours, you need 1/9th (11,1%) more umol/s over those 16 hours to provide the same energy you did before. It's proportional to hours of use and umol/s provided (technically, umol/s per meter-squared = PPFD which is what you reference to calculate DLI) Becoming familiar with this makes communicating about lgiht in different gardens as apples to apples even though the power and area covered will vary. 35-40 DLI is going to be the max with ambient CO2. if you regulate your environment you can push 50-60 DLI. (light, co2, temperature rh, et al.. circulation is all part of environment)

More light= more yields (To extent) with healthy plants

To answer the question briefly: YES, it would affect the yield! 😇

Into this with auto growing. I've learnt a lot about this and I see how I was stressing my plants. When they do go into rest. They get really droopy and can stay like that until lights go back on. That's signs of your DLI over reached and light stress.

Now, here's a good question, common and widely misunderstood. Creepy Steve will give a better example but here's a tid bit Has nothing to do with hrs recieved pal. Has all to do with DLI. I highly suggest you to off a DLI chart. As in early stages your DLI needs to be real low as a seedling. So you need to reach 20-25DLI over your seedling stage. So, I'm not sure of your par output/ppfd chart but you need to add your PPFD received over HRs given. With autos you can either do the 2 ways. As they don't depend on light timing to flip. But ppfd / DLI needed. Check a chart. You'll find the perfect range for seedling. But, as it goes on in your grow you have options to reach your DLI either in 14hrs or 10hrs. I suggest you look

It's not really about the duration, but rather the total amount of light, so the DLI. In theory, you can compensate for fewer hours of light with more intensity. However, the yield depends on so many different environmental factors (roots, RH, temp, nutrients, pH... etc, etc) that you won't notice the difference if you don't know how much it could have been. 😅😎