I found the Platinum Therapy Light Website to be packed with information on their products to help me choose the most appropriate panel for myself. It also contains lots of helpful information about red light therapy research and applications of it for various issues. They keep the recommended use of the panels simple and easy to follow. I do wish they would include light intensity readings from multiple distances as well as have 3rd party testing using more accurate light measurement tools. This is not to diminish the quality and power of these panels which are the best in the world from my standpoint. All manufacturers should be doing this to allow for better comparisons and to assure the performance of their products. I’ve had a great experience with customer service with regards to any questions I’ve had as well. I love my Biomax 450 and will likely add more panels in the future.