Bodhi Plant and seed guide (Part 2)

[Varuna]

reposting this from another thread but you dont NEED an apogee if you have a phone with a proper sensor

@Varuna

I compared a newer flagship smartphone using the app 'PPFD Meter 'from the google playstore against an Apogee MQ-200X and they were within 100-200 PPFD of eachother. The sensor on my phone had to be calibrated down just a tiny bit, which is possible to do in the app. The app even gives you DLI, its very useful.