This is different than the 'cold' lasers or low level lasers. Does anyone have any experience with it? http://www.medscape.com/viewarticle/723164 My interest in this is because I'm hoping it might help with neck pain issues I've experience for 9 yrs following a severe whiplash (MVA). Then after more research I found information stating that the new class lasers penetrate much deeper than the low level (red lasers etc) therefore causing increased metabolic activity within the cell. below is an excerpt from this Mercola article - http://articles.mercola.com/sites/articles/archive/2013/07/28/k-laser-benefits.aspx “By stimulating the cytochrome oxidase enzyme, we are utilizing that oxygen in the respiratory chain inside of the mitochondria, producing more ATP for that cell. So regardless of what kind of cell it is, it’s going to function at a higher level. Now, we are not turbocharging. We’re not making your body do anything that it could not normally do. We’re just facilitating the process. We are helping those cells produce the energy that they normally would, so they can function as they normally should I don't know, maybe I'm just being wanting relief of my neck/headache pain and the dysautonomia so bad that I'm not seeing clearly... is this a scam, the newest ploy to lure money/time/hope from the desperate? Also, does anyone know anything about this CFS doctor who uses Class IV laser as one of his treatment options? http://www.appletoncfsdoc.com/different.html Thanks for any input.