Features1WAVELENGTH: 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. 2MULTIFUNCTIONAL: Unlike the ordinary red LED therapy device on the market, this infrared physical therapy torch can reduce pain, more functions and better results. 3EFFECT: Infrared therapy lamp can improve local tissue ischemia, reduce inflammation and swelling, reduce pain, relieve muscle spasm, and promote collagen production. 4APPLICABLE PARTS: Portable red LED therapy lamp can be used on back, neck, shoulder, knee and hand to reduce joint pain, muscle fatigue and soreness. 5APPLICATION 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.SpecificationItem Type: Red LED Therapy TorchMaterial: Aluminum alloyBuilt in Battery: Lithium ion battery 1200mAHPackage List1 x Infrared Therapy Lamp 1 x Lanyard 1 x Battery Charger 1 x Storage Box