Seems to be spot on with my grow lights and what's really cool is you can go online and find a Lux to PPFD calculator. When I entered lux and illuminant, the ppfd specified by the manufacturer came back.
Professional Photography Studio Setup: LOMTAP Backdrop Stand Green Screen Lighting Kit With Softboxes, Umbrellas, Reflectors And More
24 Review
HUAYI 5'X10' Vinyl Backdrop Photo Studio Pictures Home Decoration DIY Food Background Brick Wood Floor D-2504
26 Review
Enhance Your Lighting Setup With Kamerar D-Fuse Combo: Large LED Softbox & Grid, 12"X12
22 Review
10.1 Inch Digital Picture Frame With IPS Touch Screen HD Display, Frameo APP For Remote Sharing, 16GB Memory, Auto-Rotate, USB & Micro SD Card Support - BIGASUO
33 Review