I cannot believe how beneficial our panel has been in healing injuries faster! My wife and I have been using it for months now. I recently pulled a muscle in my back, which in the past has taken weeks or months to heal. With 15 minutes or red light therapy 5 days in a row, I was able to return back to Jiu Jitsu and weight training! 5 days!! Another fact I want to point out is that I tried red light therapy once before, but these panels are probably 10 times brighter than the ones I used at a spa. SUPER happy with our purchase and have recommended to all our friends! Thank you!!