Search results

Studying spectra output graphs of these and other COBs got me thinking. The lumen efficacy of a cob is not what we should be looking at. Since it represents the efficiency of a light source in a "lumen" range of spectrum. If we can agree that Lumen range is not ideal at driving photosynthesis...

Hi, I managed to buy 6 of these COBs. Citizen horticultural LED. Plant RB version 200w. which is supposed to be best for plants. There is also a plant white version which suppose to be used above workstations for people to have better comfort and ease of plant diagnosis. Anyone has any...