How would I obtain the optional PEMF and Photon/red light options?

These PEMF/VLF and Photon/red light functions are factories installed on some of our models. The PEMF coils or LEDs are woven into the mats and cannot be installed into the models that are not made with them. 

You need to order another mat if you need these functions. You can always trade in your mat for half price (purchasing price decreased for shipping cost, around 10%) and choose a more expensive mode.

But Classic Red-Brown MediCrystal FIR amethyst mats (Hot Crystal Far InfraRed and Negative Ion mats without additional functions) may be more comfortable and durable for standard ion and infrared heat therapy. 

These mats are covered by soft eco-suede and may also be more comfortable if you use the mat without the cover for high-heat thermo-therapy.