I purchased (4) Biomax 600 panels and a biomax mobile rack and I am so glad I made this purchase. I've had the system for about 6 weeks now and used it for 20 mins almost everyday. I've had an increase in energy when I use this in the morning (with blue light). On days when I use this in the evenings, I've had better sleep at night (note: I have to turn the blue lights off for evening use or else it does keep me awake). I've seen a slight improvement in my skin tone, a fading of old scars, a noticeable increase in energy in the gym, an improvement in my close-up vision, and my mood seems better in these cold dark months of winter all due to receiving this variety of 7 different light bands. For me, this was a costly purchase but I have no regrets in spending the money and I will continue using it on a daily basis whenever possible. I recommended making the investment in yourself and then commit to 20 mins a day as many days as possible. I truly do feel better than I did before.