UPGRADED OPTICAL LENS DESIGN. Red light therapy features 18 powerful LEDs, with a 1:1 ratio of 660nm red and 850nm near-infrared light. PRODUCT DIMENSIONS: 4.7 x 4.7 x 4.7 inches; 1.76 pounds. Power Consumption: 15W. Power Output: 36W. The higher the power, the better the effect you'll get. NATURAL. NON-INVASIVE. SAFE. Irradiance > 89mW/cm at a distance of 3 inches. Power cord length: 5 feet. 60-degree beam angle. DURABLE AND FLEXIBLE USE. The V18 red light device is a complete set, with a 36W bulb and an adjustable socket clamp, making it a travel companion. Your light works by emitting red and near-infrared light within a specific range (660nm & 850nm) of therapeutic wavelength and intensity. This device addresses a number of health concerns as red light therapy increases the production of adenosine triphosphate, enhancing cellular energy production and boosting protein synthesis. Specification: Power Consumption: 15W Power Output: 36W Package Includes: 1 x Red Light Therapy Lamp, 1 x Lamp Holder, 1 x User Manual