660 nm Red light increases cell metabolism helps increase collagen production reduces scarring and promotes wound and ulcer healing; 850 nmNear Infared Reduce pain accelerate wound healing muscle and ligament healing and promote the recovery of mitochondrial function in cells. If you have any question please feel free to contact us. We will spare no effort to help you. Product parameters: - Project Type: Red Light Panels - Material: Iron - Voltage: 110V - Panel (One piece)size: 310*310*40mm/12.2*12.2*1.57inch - Panel (One piece)Weight: 1.4kg/3.09lb - Lamp power: 45W - Effective illumination range: 0.6m/23.62inch - Splicing: Lamp 1 1 1 1 One splicing connector theory supports unlimited splicing (this product has only three panels) - Suspension: Standing is also available Packing list: - 3 x Panels - 3 x Power adapter - 3 x Eye mask - 3 x Remote control