Overcast Day vs Quantum Board?

[Buds N Brew]

Which would offer more and better quality of light? I'm inclined to believe that even a cloudy day is brighter and better for plant growth than even the best grow lamps. What do you guys think?

 

[PJ Diaz]

QB

 

[rkymtnman]

depends if it's partly cloudy or partly sunny.

 

[twentyeight.threefive]

Which would offer more and better quality of light? I'm inclined to believe that even a cloudy day is brighter and better for plant growth than even the best grow lamps. What do you guys think?

I think bringing your plants inside and outside is asking for issues. Outside plants stay outside and inside plants stay inside.

 

[Funkentelechy]

Which would offer more and better quality of light? I'm inclined to believe that even a cloudy day is brighter and better for plant growth than even the best grow lamps. What do you guys think?

I agree that the quality of light even on an overcast day is probably better than grow lights, quantity is tricky.
Lux is a totally inadequate way of measuring light for plants because lux is a measure of light that we see as humans, predominantly in the green and yellow spectrum which plants don't use much.
Par is better, it measures the light spectrums that plants can perceive which includes the green and yellow spectrums that we perceive, but also includes blue and red light. But, Par doesn't measure the quantity of light for that you need PPFD (photosynthetic photon flux density).

 

[Moflow]

Outside at 55°N June 5th Cloudy. 13.42 hrs



July 2nd cloudy





Sunlight on the 21st June here at 55°N reads ~ 2400 on the par meter

Indoors I aim for ~ 800 - 1000 umolioes

 

[Green Refuge]

Depends where you're at. Download the ppfd app. Could be Anywhere from 500-3000ppfd.

 

[DrOgkush]

You guys are really questioning the suns growing abilities? Lol.

 

[DrOgkush]

Let’s ask the rainforest if she needs QBs over her durning all those midday storms jk lol

 

[LordEnki]

QB

View attachment 5112106

 

[calvin.m16]

This completely depends on where you are at on earth my dude. is there shade? Trees? What time of day are you measuring light? It's not that simple.

 

[lusidghost]

You all took the bait.

 

[hillbill]

Very little red for blooming when overcast.

 

[lusidghost]

View attachment 5112577

This picture is cool.