Cold lasers, part 1

Not only does "cold" laser sound innovative and cool from a marketing standpoint, this is also called "laser acupuncture," a term that I think just beats all.
The Low-level laser refers to the use of red-beam or near-infrared lasers with a wavelength between 600 and 1000 nm and Watts from 5-500 milliwatts, this is too low to produce heat, hence: "cold" laser.
The Mircolight 830 has had FDA 510(k) PMA approval for over a year. According to the FDA letter, the "MicroLight 830 Laser is indicated for adjunctive use in the temporary relief of hand and wrist pain associated with carpal tunnel syndrome." http://www.fda.gov/cdrh/pdf/k010175.pdf
There were actually quite a number of comparative clinical studies on "low level laser" treatment on a MEDLINE search several months ago, also there was one reported to the FDA (see link). However, none of them really reported outcomes when compared with standard treatments for carpal tunnel. Of course, there's many studies for "cold" laser in the treatment of other things as well, including fibromyalgia, low back pain and sprain ankle. Outcomes have been very mixed. There seems to be serious investigation, but the technology doesn't look to be breakthrough for any medical indication. Do a google search, and I suspect where you find it is where it will ultimately end up.