Photone app for iPhone with diffuser what dli lux ppfd...?
- Thread starter Kenny1234
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smokey0418
Well-Known Member
I have used that app.
The only thing that I was concerned about was calibration.
Like the tools I use in my trade have standards were the app you must trust said ppfd from the manufacturer, then set accordingly hopeful your close.
Definitely a useful tool that is priced cheap.
Enjoy and good luck with your grow , from your readings you must be headed into flower.
The only thing that I was concerned about was calibration.
Like the tools I use in my trade have standards were the app you must trust said ppfd from the manufacturer, then set accordingly hopeful your close.
Definitely a useful tool that is priced cheap.
Enjoy and good luck with your grow , from your readings you must be headed into flower.
LeastExpectedGrower
Well-Known Member
Use the calculator on their site with it:
growlightmeter.com
It bases it's responses of over/under DLI from this chart:
Photone - Grow Light Meter
growlightmeter.com
It bases it's responses of over/under DLI from this chart:
Look at them took pics yesterday...wat ya think
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Not really some are veg still there autos Mephisto some I see pistols but is 46 dli to high with 40 thousand lux and 760 ppfd?
So your saying dli should be 55?Use the calculator on their site with it:
Photone - Grow Light Meter
It bases it's responses of over/under DLI from this chart:
But dli should be lower during flower ? ExplainUse the calculator on their site with it:
Photone - Grow Light Meter
It bases it's responses of over/under DLI from this chart:
Use the calculator on their site with it:
Photone - Grow Light Meter
It bases it's responses of over/under DLI from this chart:
smokey0418
Well-Known Member
Imho.
They look a bit exhausted.
I don’t have as much experience in soil as watering at times can make plants droop.
So from these last pics , if they just were not watered I would say.
Could be a bit damp, if not next.
You say 700 ppfd from app, at the canopy
I think that you may very well be close to the number you say.
I would think 500 ppfd would be lots and should lift leaves to make them pray as per say.
So raise light until 500 ppfd?
smokey0418
Well-Known Member
Everyone has there way . My personal preference would be to keep fixture closer then dim for the number during veg.
But some have payed a lot and would like get it all , so they could raise for the amount that works best.
But some have payed a lot and would like get it all , so they could raise for the amount that works best.
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LeastExpectedGrower
Well-Known Member
No. That's not what I'm saying. The chart is by week. I don't know what week your plants are in. Follow along by the week you're growing in. Also, note that the 'top' numbers are just that. So if you're in week 6 (where the 55DLI is) then you want to be at 45-55. I aim for the lower of the two myself.
LeastExpectedGrower
Well-Known Member
Read. The. Chart. The weeks are different. Some weeks are lower than some veg weeks some are higher. Part of the DLI difference is the time difference in the schedules (18/6 vs. 12/12).
I'm in about a month ....
Here's my paremeters for week for no c02...
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LeastExpectedGrower
Well-Known Member
Cool story. Plug in 'about a month' into the calculator when it asks you which week. Plug in the actual PPFD as well. Plug in your light schedule. The calculator TELLS YOU if you're over or under, then it also gives you suggestions as to how to adjust that with either light levels or time.
LeastExpectedGrower
Well-Known Member
The iOS version is dependent upon the hardware, but I think it's the same with the Android version too. In my case, with an iPhone XS Max, it was within something like 7% or less compared to the Phantom Photobio I had. Though I know a few people on newer iPhone 13's, etc. that didn't have as good luck with accuracy.
If people care, I posted my results here and they're searchable.
But yes. Pretty simple. use the app in combination with the website calculator. The calculator will also tell you if you need to change your lighting, what options you have to adjust.
HibbityJibbity
Member
Just checking here, you calibrated the phone to the light chart from your light mfg yes? I mean unless you have an already calibrated meter just putting the phone under the light may not be so accurate. I contacted the developer about using the android version as that one didn't require a piece of paper folded over the lens to use, although it still says its beta. Developer said between the apple and android he believes the apple numbers I was getting but he said barring any other method to calibrate, the best thing to do is use the mfg light map PAR readings and calibrate it to that, assuming the map is legit. Then you can accurately measure your DLI. When I was using it I was reading pretty high compared to what the light map was saying. Now it's calibrated close to spec. And now I don't use it anymore as I know what the current light does for me.
LeastExpectedGrower
Well-Known Member
I tend to not believe most PAR maps as presented by light makers...it's akin to ad copy and I have serious doubts about the accuracy of pretty much all of them. Best bet if you don't have a meter to check against is to either rent or borrow one if you can. Also, the maps are finicky, and if you're a few inches in one direction or another, you're adjusting to the wrong numbers which is just as bad.
