I believe in terms of PAR, from highest to lowest it's:
Ray2
Planted+
FugeRay
From what I've read on this forum, the lack of reds in the Ray2 may leave a washed out appearance in the tank and and non-green plants. The Planted+ is the most recent of the 3 and has the desired red LEDs. I think all would qualify as medium in a 20g long with the Ray2 probably more like medium high. Hopefully Brian_Nano12g chimes in with his vast LED insight.
I only have experience with the Fugeray. Here is my 20g long planted tank (PPS-Pro, DIY CO2, Glut):
I would be on the more conservative side with glutaraldehyde/Metricide in a shrimp tank. I have a low light shrimp tank with dual T5 NO with no ferts or glut. It has moss and crypts only.