Firstly, I am returning customer. I purchased a Biomax 450 in 2022 and was really impressed with the build quality. In January 2023, I purchased the Biomax 600 and it is even better because it also has the additional blue LEDs and the same excellent build quality and as well as a remote control. I have the two panels linked together and mounted vertically on the wall. Since both Biomax panels already have M6 screw holes for various mounting options, it was easy to 2 LED TV wall mounts to secure them to the wall. Now I can get full body LED therapy. Love’n it!