Magnus offers two different light spectrums; Pro & Standard "White".
The first difference between the 2 versions is the visual light colour.
The pro version emits a pink colour while the standard "white" versions emits a white colour.
The Pro version has a better grow efficiency because all the light output is used by the plant. This makes the colour of the light purple.
The Standard "white" version has more green and yellow colours than used by the plant. Thuis makes a white visable light colour what some growers prefer but resulting in a little less efficient spectrum. Because the plant will not use as much green and yellow for photosynthesis