Feature:1. WAVELENGTH: 475nm 620nm 660nm 850nm 940nm wavelengths to meet all customer needs, the new 475nm for better skin protection, 940nm is longer than the 850nm wavelength of unseen infrared light.2. MULTIFUNCTIONAL: Unlike the ordinary red LED therapy device on the market, this infrared physical therapy torch can reduce pain, more functions and better results.3. EFFECT: Infrared therapy lamp can improve local tissue ischemia, reduce inflammation and swelling, reduce pain, relieve muscle spasm, and promote collagen production.4. APPLICABLE PARTS: Portable red LED therapy lamp can be used on back, neck, shoulder, knee and hand to reduce joint pain, muscle fatigue and soreness.5. APPLICATION COURSE: Two to three times a day, 15 to 30 minutes each time, the light needs to be directed as much as possible to the wound, the closer the better, at the end of one to four days time.Specification:Item Type: Red LED Therapy TorchMaterial: Aluminum alloyBuilt in Battery: Lithium ion battery 1200mAH.Package List:1 x Infrared Therapy Lamp1 x Lanyard1 x Battery Charger1 x Storage BoxNote:850:940NM is unseen light to the eyesApplication Notes: Light physiotherapy effect, through the physics of the method, emitting 475nm 620nm 660nm 850nm 940nm light wavelengths (and He Ne laser in the same wavelength, deep penetration, penetration of the body with red light and the optical effect of red light wavelengths (refers to the red after) light on the mitochondrial peroxidase activity increases, enhance cell metabolism and protein synthesis, promote local blood circulation, and control the increase of infection.