I strongly feel that alot of my shrooms would do better in higher par. Honestly its probably what some of mine need. You see all these crazy bounces and other shrooms being ran at around 200 par and they blow up crazy.I can only imagine what my par is... 3x Kessil A360WE's and 4 39watt t5... sitting approximately 13 inches above tank with 12 inch depth...
I started with cheap black box with highest par around 75 so im slowly breaking them in.
I can tell you I completely burnt a few shrooms up recently when my wifi chip went out and lamp was getting super bright and dimming on its own.
Some are super sensitive to sudden changes in lamp intensity. Some don't like higher intensity at all and just do good on the outside rack creeping into the light.