A misconception among even very experienced growers is that green light cannot be detected and used by plants.
It can.
While not in as large amounts as other spectrums of light, green light in sufficient brightness could be detected and cause problems with photosensitive periods of a plants life.
The information is available on the net. I've posted it here before.
A search like "Plant Growth Green Light" "Plants detect green light" "Photosynthesis and green light" will find the info.
The best advice I can give anyone is to plan your work in the grow room to be only during lights on time. Or move your reservoir out of the room. If you have to go in, use a VERY DIM green light and let your eyes adjust to the low light conditions.