Feature: 160 medical-grade lamp beads give hair follicles stronger energy and achieve ideal hair growth effect- 160 LLLT low-frequency laser can activate hair follicles to penetrate into the deep layers of scalp cells (hair roots and hair follicles), accelerate hair follicle cell division, promote hair growth, increase the vitality of hair follicles, dilate blood vessels, and promote blood circulation in hair follicle nutrient supply centers. Every other day, wear it for 30 minutes-940/850/630 nm wavelength, penetrate the scalp for 3-5mm and reach the root of hair follicle. The process of hair growth, the curative effect is visible-enhance the face value, wake up the hair follicles to return to thick hair volume. Anytime, anywhere, in many scenes-free hands, enjoy free technology everywhere, and wear healthy hair. Parameters: Name: infrared physiotherapy cap Size: 26*20*12.5cm Product weight: 0.25kg Power: 22W Quantity of LED: 160PCS 5050 Input voltage: DC12 3A Angle: 120 Wavelength: 940/850/630nm Irradiance: > 170MW/CM2 Suitable for head circumference: 58-61cm Package includes: 1x Cap 1x adapter 1x controller 1x manual