A piece of white printing-paper and used the manufacturer’s ppfd’s at 12inch/30cm.Did you use the filter for your phone?
A piece of white printing-paper and used the manufacturer’s ppfd’s at 12inch/30cm.Did you use the filter for your phone?
But I believe that only applies to iPhones also make sure you have the correct lights selected
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A piece of white printing-paper and used the manufacturer’s ppfd’s at 12inch/30cm.
mine read slightly high compared to my par meter 

You want to measure at the canopy level. You’re measuring what the plants are experiencing. Unless your light is at 12”……A piece of white printing-paper and used the manufacturer’s ppfd’s at 12inch/30cm.
Its probably right. Depending on the distance and size of the space its gonna read pretty high. My lights par map is for a 4x4ft space and in my 3x3 the outer edges are all about 15-20% higher than the par mapMy meter must show the wrong numbers as I’ve got ~2000ppfd when i turned all three lights up to 100%.
If it’s correct it has to because the lights-beams crosses each other and gives multiple sources of light.
What did it read before calibration? I used the photone app for quite awhile and never calibrated itmine read slightly high compared to my par meter
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Of course, that is what I did at max wattage with the 3pcs 480w in the 4x8. They are 115cm from canopy.You want to measure at the canopy level. You’re measuring what the plants are experiencing. Unless your light is at 12”……
I used to think that too. I was wrong. I was giving them much more than they required, and once I fixed the issue, some chronic problems I always figured were deficiencies went away…. Plus I’m not wasting excess electricity…It asks for a diffuser immediately.. I probably need to get a real ppfd-meter if I want to know what the true values are. But i don’t go after the meters, I check the leafs, it’s easier IMO but for beginners I suggest to use a meter.

I used to think that too. I was wrong. I was giving them much more than they required, and once I fixed the issue, some chronic problems I always figured were deficiencies went away…. Plus I’m not wasting excess electricity…![]()

It asks for a diffuser immediately.. I probably need to get a real ppfd-meter if I want to know what the true values are. But i don’t go after the meters, I check the leafs, it’s easier IMO but for beginners I suggest to use a meter.
