Hi Gerry --- Very sorry for the delay. For some reason, I didn't notice your message until now.

I can't find much information about the laser (and we haven't bought it yet, so I can't report on our experience with it) but I am pasting some links below with the information that I was able to find. (Note that some of these are from a seller's website.)

http://beta.asoundstrategy.com/sitem...e502/Flyer.pdf

http://beta.asoundstrategy.com/sitem...%20therapy.pdf

http://beta.asoundstrategy.com/sitem...on1%202012.pdf

http://vitalitymagazine.com/article/...light-therapy/ (This is about high blood pressure.)

There is another article that I could not post because it is a PDF. It is called "The potential of light therapy in Parkinson’s disease," published in the journal "ChronoPhysiology and Therapy."

Did you ever try to use your laser to treat your PD?

Best wishes!