IMPROVED OPTICAL LENS DESIGN. Red light therapy features 18 high power LEDs with a 1:1 ratio of 660nm red 850nm near infrared light. PRODUCT DIMENSIONS: 4.7 x 4.7 x 4.7 inches; 1.76 lbs. Power consumption: 15W. Output power: 36W. The higher the power consumption, the better the effect. NATURALLY. NON INVASIVE. SECURE. Irradiance > 89 mW/cm at a distance of 3 inches. Power cord length: 5 feet. 60 degree beam angle.DURABLE AND FLEXIBLE USE. The V18 red light fixture is a complete set with a 36W bulb with an adjustable socket clamp, which is a travel companion. Their light works by emitting red and near infrared light in a specific range (660 nm and 850 nm) of therapeutic wavelength and intensity. This device causes a number of health issues because red light therapy increases the production of adenosine triphosphate, which improves cellular energy production and increases protein synthesis. Specification: Power Consumption: 15W Power Output: 36W Package includes: 1 red light therapy bulb, 1 lamp holder, 1 instruction manual.