Switcher56
Comfortably numb!
I guess it all depends how much folks are willing to invest. Setting up for the 1st time is expensive (as you know). IMHO it gets you closer than a measuring tape.50% of the reviews for that are 1 star. That's a bad product bro. If you are going to spend that much spend the 250-300$ for a decent one. Or if you really want spend the 2,000$ for a real spectrometer and compare them Most "PAR" meters are just lux meters with a filter in place, they still weight yellow light too much.