Infrared light function: physical therapy: relieve pain, auxiliary treatment of rheumatism, lumbar rheumatism, cold muscle soreness, relieve arthritis, promote wound healing. [Three major functions] 1. Beauty and health care: Infrared spectrum has strong permeability, deep heats the skin, effectively improves blood circulation, improves skin tissue, and has beauty and body functions. It is an ideal physiotherapy and beauty product for families, beauty salons and hospitals. 2. Physiotherapy: relieve pain, lumbar rheumatism, cold muscle soreness, relieve arthritis, promote wound healing. Medical infrared heat therapy. 3. Heating: Infrared heating is fast, heating efficiency is high. The heat source is relatively stable. The heating range is wide (1m to 3m) and the life is long (8000 hours).