So I just got a new phone that will do par lvls. With my light on 8 out of 10 my par is 1500 at the canopy lvl, so I turned my light down until I was at 1000 which is on 4 or 5 out of 10. Seems real low but I’m at that par. Guess my question is, is a really bad to have a huge par over that thousand range during flowering and just no experiencing this because I just got a new phone past two girls didn’t show anything burnt or anything so just confused
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What phone are you using? What app? Are you using a sheet of 20# paper over the lense?
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Photone and no I haven’t done the paper thing yet… is that the truck to it? Thanks for stopping by !!
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I know for some phones it is required. Not sure if it is on all.
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I just read that they recommend using white paper over it. This will definitely help. I wonder how much it’s going to change. Thank you so much! I appreciate you.
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I assume pretty considerably. What light do you have?
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I wouldn’t reduce light levels from previous successful grows based on a phone app. If you grew plants successfully in the past at 8/10 on your light dial, it’s likely not 1500 ppfd. That would fry your plants.
Android phones are notoriously unreliable for these measurements, Apple products seem to test out better. I use a phone app to maintain consistency between grows, but I don’t put too much reliance on the number it is spitting out at me.
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You’re not reading anywhere close to correct levels I can just tell by the fact that unless your light is 3 inches off the canopy no light on earth is going to produce 1500 par at 50% get a 22 pound paper and put it over
I also use an app on my iPhone and I have tested it against the high dollar Apple G meter and it’s dead on
Good led , @100 percent , at 8 inchs off canopy will throw 1100 to 1200 par maybe a touch more
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AC Infinity
IONFRAME EVO4,
That’s exactly what I was thinking. Just thought maybe it slowed growth or something and maybe I would have bigger better. Not really sure
Yea no way those are accurate. Definetly try with the 20# paper over the lense.
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Android phones, especially Samsung phones, are more accurate than Apple products if it’s with the Photone app, as seen in some tests. Samsung phones also don’t need paper over the lense, which is why I would never do that unless the app is literally asking you to do so (which is the case with Apple phones). Just a general pointer, as I don’t know which phone he owns.
Don’t use paper unless your Photone app asks for it, which it does by knowing which phone you have. Compare your phones PPFD output with the datasheet of your light, if it has one. Most basic ones already have a datasheet with different PPFD levels at different heights / watts.
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without calibration, you can’t use the numbers from photone directly. however, you can use them on a relative basis. so, you find what burns or what is good, measure it, relax and take notes. then compare later on to what you measure. i found that on my phone and in my setup that my plants don’t like much more than 600ppfd at any point in flower. more either fries the tops or makes them shoot out a bunch of white hairs till end of flower. i keep it about 500 in early flower. you can use the measurement to adjust your lights every couple days.
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I personally use this with the app on my phone. It connects via Bluetooth.
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Goggle pixel 6a
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If the app asks for the sheet of paper, use it, and try to be particular with the paper. The numbers can be 10s of % points off based on the paper used. Also, make sure you have unlocked the proper spectrum for your light (full spectrum LED vs sunlight will produce different readings). Ive found Photone to be most useful for figuring out how much I’m altering the light at the canopy if I think it’s too high or low. I wouldn’t rely on it for absolute numbers (like aiming for exactly 1200 ppfd for example). It’s more like “ok I think it is a touch bright at the canopy, let’s lower the intensity by 10% and see how they respond.”
I never trust phone apps. I know many use them and are successful but I am always concerned with the basic fact that my par meter has a very specific sensor in it that is not on any phone. Now I know that the software corrects for this difference but since I got a par meter I don’t fool with my phones. When I first installed an app on my 2 phones I got wildly different results, which kind of turned me off, but I am sure they have improved both the software and phone sensors by now. Now I will say I question what AC Infinity lists there light ppfd values at. This is what AC says about your 300w light.
So at 18" it says it’s getting 1438 at center. Now if we compare it to say the HLG Scorpion Diablo at 715 watts.
It comes in at 1068.5. Something seems odd to me there.
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Could it be ones a bar light and one is QB board based? Either way, yes I agree something is off there.
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The Scorpion Diablo is sort of built like a bar light. The AC light PPFD is about the highest I have ever seen which just seems very odd to me.
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Yea I have a scorpion r spec, I personally, have not been a fan of the ac infinity lights, and I like most of their other stuff. I wish there was an independent test on them.
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