An electrically-powered diode laser intended to provide non-surgical laser therapy [e.g., infrared phototherapy, low-level laser therapy (LLLT)] for localized treatment of musculoskeletal conditions (e.g., muscle/joint pain, sports injury), improving blood circulation in the treated areas to facilitate healing, or for non-needle acupuncture. It typically consists of a control unit which may be mounted on a mobile trolley, a foot-switch, and a connected applicator/beam guide designed for internal (e.g., intravaginal) or transcutaneous delivery of visible red/infrared laser light energy/heat. It is intended to be operated by a healthcare professional exclusively in a clinical setting.