Reading this article below I have come to the conclusion that specific
frequencies in HZ make for better healing. QUOTE:-


"tissue derived from ectodermal tissues had a positive response to 292
Hz. Tissue derived from endodermal tissues responded best to 584 Hz
and tissue derived from mesodermal tissues responded best to 1168 Hz.
These frequencies are all harmonics of each other and happen to be
harmonics of the D note."

I got the above from this website http://www.esmhome.org/library/led.html

V what frequency does your dual arrays 660nm/880nm red and infrared
operate on please