10k.. Standard daylight. I bring things on at that. Perhaps 150-200umol/s. I think the phone sensor isn't concerned with much other than screen dimming, and if it's in your pocket or by your head. A basic LightDependentResistor perhaps. The App is taking information from the operating system, that in turn has no interest in recording levels above daylight.
So I aimed for 700umol, I shot, I failed. The hid plants were fine, but the led one's showed every problem known to man. ec1.7 wasn't enough, but my vpd was also boarderline while it filled up. 550umol now, and a nice vpd. They did grow like fuck though. First K issue's in ages, mostly seen on an isolated control. So vpd seems the real problem. So glad I didn't do a diary lol
Nice looking meter SBG. I'm starting to think one with built in sensor is best for tweeking controls while taking a reading.
Mine
https://www.icmag.com/ic/showthread.php?t=314806
Something on the underground, but I'm not sure it's the full article. I read so much. https://www.ee.co.za/article/extraordinary-measures-role-lux-meter.html
So I aimed for 700umol, I shot, I failed. The hid plants were fine, but the led one's showed every problem known to man. ec1.7 wasn't enough, but my vpd was also boarderline while it filled up. 550umol now, and a nice vpd. They did grow like fuck though. First K issue's in ages, mostly seen on an isolated control. So vpd seems the real problem. So glad I didn't do a diary lol
Nice looking meter SBG. I'm starting to think one with built in sensor is best for tweeking controls while taking a reading.
Mine
https://www.icmag.com/ic/showthread.php?t=314806
Something on the underground, but I'm not sure it's the full article. I read so much. https://www.ee.co.za/article/extraordinary-measures-role-lux-meter.html