Phone light meter off by 55%. I calibrated and grow much better now.

[Newbelinginaz]

So I started using the android app "PPFD Meter" and calibrated my phone to my lights specifications. The phone was 55% off, so with calibration and some education on DLI I am in the Dank Zone finally after sacrificing many seed as a new grower.

So do yourself a favor and "Calibrate, Calibrate dance to the music"

 

[Krispy420]

that is interesting, I was skeptical when you said a phone app was measuring PPFD but after a quick google search i see phones have a built in light sensor to adjust the screen brightness according to ambient light? The more you know. My phone is getting on the older side and I don't think it even has that function but I am curious now. If you have found a way to make it accurate and save money on an expensive par meter than kudos to you

 

[Aqua Man]

So I started using the android app "PPFD Meter" and calibrated my phone to my lights specifications. The phone was 55% off, so with calibration and some education on DLI I am in the Dank Zone finally after sacrificing many seed as a new grower.

So do yourself a favor and "Calibrate, Calibrate dance to the music"

View attachment 1176022

Absolutely it depends on the phone make and model, screen protectors etc. Always best to find someone with a meter and calibrate it. Local grow stores can prob help ppl out.