Upgraded Red Light Therapy Lamp: Each therapy light bulb contains 18 high-power LEDs, including 9 at 660nm deep red and 9 at 850nm near-infrared wavelengths, optimized for effective light therapy. The 850nm infrared light is not visible to the naked eye, so only half of the LED chips will appear lit during use. Optical Lens Design: Features a 60-degree glass lens and an additional large optical lens to enhance irradiance to over 141mW/cm. Suitable for targeted treatment on areas such as the face, shoulders, knees, and lower back. Recommended for 20-minute sessions. Drug-Free & Non-Invasive Support: Designed to deliver soothing infrared light to help support blood flow and circulation in targeted areas, promoting natural recovery of muscles and tissues. Easy and Durable Use: Compatible with standard E26/E27 sockets and operates on 100240V AC. Simple to install and use at home. Built-in heat sink ensures efficient heat dissipation for long-lasting performance.