LED Red Light Therapy Lamp: 660nm red and 850nm near infrared combo light, making it the best wavelength for light therapy. Infrared light is invisible to the naked eye so when using this bulb only half of the chips will appear illuminated, this is normal. Durable to use & Adjustable Holder And Advanced Design: Red light therapy bulb are thought fully designed with smooth edges so you won't cut your hands when using them. This red light therapy lamp comes with a 300 degree rotation socket so that you could use it from any angle, anywhere. Non-Invasive Pain Relief: Designed to deliver infrared heat to the body. The infrared heat encourages muscles and damaged tissue to heel. The red light bulb is equipped with 60 degree glass lens and additional super large optical lens which improve the Irradiance > 141mW/cm². Infrared Light Therapy: It is widely used in home, office, tanning salon, gym, day spa, health center. You can enjoy red light therapy at any time and any place. Also it is a good gift choice for your family on birthdays, Thanksgiving, Valentine's Day, Halloween, Christmas and parties. Worry-Free Warranty: 24 months warranty plus 30 days satisfaction or return guarantee, 100% money back. We provide 24/7 customer service, if you have any questions, please feel free to ask. Red Light Therapy Infrared Light Therapy