Anyone that has ever tried to take a pic under HPS lights knows how well that works. I ended up with a pair of Lumii grow room glasses, and noticed how big a difference they made. Just for hahas, I held the glasses in front of my camera phone and snapped a shot. It looked like I took the pic outside in the sunlight. I have no idea how much the glasses actually cost, but they make a great filter when photographing in a flower room. Just something I thought someone might like to know.