On my first run the 315 Agro was a slightly better yield than a 600 hps.
The second run will be coming down in a few days and it's just as good!
So good in fact that I will be adding another Agro system and replace my existing leds.
Yep, I have a whole case of the 930's and that damn Agro is singing a siren song to me! I've been very impressed with these, and really want to see what the enhanced red spectrum of the Agro would accomplish.
It would be very interesting to see what a room full of Greenbeams + Agro would do compared to roughly equivalent HPS lighting.