Armdog
RDWC GROWER
I was browsing around and found this for converting Lux to PPFD. HLG has done this. It helped me out so enjoy.
horticulturelightinggroup.com
Converting Lux to PPFD & Measuring Lux with Smartphone
Spectrometer and Quantum Sensor can cost hundreds to thousands of dollars and not every grower can afford them. A Lux meter app on phone can be used to ensure even light spread across canopy and give estimate of Lux. Use a calibrated Lux meter for better accuracy. Just divide the Lux value you...
horticulturelightinggroup.com