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 near-infrared light is invisible to the naked eye, so only half of the LED chips will appear lit during use. Optical Lens Design: The red light bulb features a 60-degree glass lens and an additional large optical lens to enhance irradiance to over 141mW/cm². Suitable for targeted treatment on areas such as the face, shoulders, knees, and waist. Recommended for 20-minute sessions. Drug-Free & Non-Invasive Pain Relief: Designed to deliver infrared light to help support blood flow and circulation in targeted areas, promoting muscle and tissue recovery. Easy and Durable to Use: Fits standard E26/E27 sockets, compatible with 100–240V AC. Simple setup for convenient home use. The high-power LED therapy bulb includes a built-in heat sink for efficient heat dissipation and long-lasting performance.