... inflammation,for back pain,tissue injury.. Low Level Laser Therapy System(500mw),1). Irradiation treatment principle MDL-500 medical semiconductor ... Canker, bedsore, psoriasis, itch skin, dermatitis, bare fleck, honeycomb system inflammation. Department of gynaecology: Dysmenorrhea, pelvic infection, vulvitis, mastitis, ... AC220Vor110V Warranty: 2 years 2012 Smart Low Level Laser Therapy System(500mw)