UPGRADED OPTICAL LENS DESIGN. red light therapy has 18pcs power-LED, 1:1 ratio of 660nm red 850nm near infrared light. PRODUCT DIMENSIONS: 4.7 x 4.7 x 4.7 inches; 1.76 pounds. Power : 15W. Power : 36W. The higher the power, the better the effect you will get. NATURAL. NON-INVASIVE. SAFE. The 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 with an adjustable socket clamp, which is 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 generates a number of health benefits as red light therapy increases the production of adenosine triphosphate, which improves cellular energy production and boosts protein synthesis. Specification: Power : 15W Power : 36W Package includes: 1 x red light therapy lamp 1 x lamp holder 1 x user manual About shipping: All items will be shipped within 3 business days of payment being received. Most times you will receive them within 8-12 days then. The specific delivery time depends on the circumstances. If you have any questions please feel free to contact us During the shopping process, if you have any questions, please feel free to contact us, we will reply you within 24 hours, wish you a happy shopping Thank you for your cooperation and we will make you feel satisfied.