OK, took reading with Photone app. Using Fluorescent Daylight setting.
12 inches down, centered.
The app is NOT calibrated for the higher frequency wavelengths (UV, 420nm, 460nm) lamps.
A lamps:
PPFD = 247
DLI = 14.3 @ 16 HOURS
LUMINOSITY = 16000 LUX
CCT = 5150
A + B lamps:
PPFD = 390
DLI =...