If it breaks, you are stuck.
The advantage was that it was an inexpensive way to get home cold laser therapy.  The product has 13 light ports, 12 of which produce infrared light at the 640 nm level, and one at the 808 level.  The lower level light only goes 1 centimeter deep (skin level), whereas the 808 level penetrates about 1.5 inches.  The later is what you need if you have deep pain.  Unfortunately after a brief use, my unit failed to produce 808 nm light.  And of course there is no where or no how to get it fixed.
Rating: 1 stars