UPGRADED OPTICAL LENS DESIGN. red light therapy has 18pcs of high power LEDs, 1:1 ratio of 660nm red 850nm near infrared light. PRODUCT DIMENSIONS: 4.7 x 4.7 x 4.7 inches; 1.76lbs. Power consumption: 15W. Power output: 36W. The greater the power consumption, the better effect you get. NATURAL. NON-INVASIVE. SAFE. The irradiance > 89mW/cm at a distance of 3 inches. Power cord length: 5ft. 60 degree beam angle.DURABLE & FLEXIBLE USE. V18 red light device is a complete set, featuring a 36W bulb with an adjustable socket clamp, which is a travel companion. Your light works by sending out red & near infrared lights in a certain range (660nm & 850nm) of therapeutic wavelength and intensity. This device generate a number of health issues because red light therapy increases production of adenosine triphosphate, which enhances cellular energy production and elevates protein synthesis. Specification: Power Consumption: 15W Power Output: 36W Package includes: 1 x Red Light Therapy Bulb 1x Lamp Holder 1 x User Manual