LHONGDQA Red Light Therapy Device -Pain Relief Therapy Device for Joint and Muscle Pain Great for Back, Neck, Shoulder, Knees, Hands，3 Wavelengths 630nm, 660nm and 850nm Therapy

3 Wavelengths 630nm, 660nm and 850nm LED Bulb when turning on the device, you can find only 2 bulbs are on.The one doesn’t light on, its wavelength is 850nm.850nm is outside of visual spectrum,is Invisible tothe Naked eye. actually it works. and 630nm, 660nm Red Light is Visible to naked eye.

Red Light Therapy Device – Targets Injury Directly and Provides Joint and Muscle Pain Relief.

Red Light Therapy lamp has Numerous Effects on the Body.
Near infrared light is best for deep tissues such as joints, muscles.
Infrared light heats us and can help with detoxification.
When infrared heat hits the targeted area, the warmth opens up the capillaries, improves the circulation, which It’s effective for temporary relief of mior muscle and joint pain.