Led Type: 1880nm:1660nm:1640nm ; 150pcs0.6w. Power density value: 0 inch : >120mW / c? Timing function, 30 minutes timing. Separate control of red and infrared light. Relieve the discomfort of varicose veins.Relieve the discomfort of restless legs syndrome. Promote blood circulation in the legs. Relieve pain, relax muscles, promote metabolism, wound healing. 1 Set Red Infrared Light Waist Foot Therapy Belt.