There are various types of red light therapy devices, but all can be categorized under five general headings. Home-use devices, commercial devices, handheld devices, wearable devices, and beds. No one type is best suited for everyone - instead, it's vital to choose the device most appropriate for your specific needs. To find which one suits you best you'll need to answer these three questions; what am I using this device for? Where will I use it most? And how much space do I have available where I want to use it?