LED red light therapy (usually with a wavelength of 630-660 nanometers) is a non-invasive photobiomodulation technology that acts on cell mitochondria through light energy of a specific wavelength to promote cell metabolism and repair. Red light stimulates the mitochondrial activity of hair follicle cells, increases ATP (energy molecule) production, and promotes the transformation of hair follicles from the resting phase (Telogen) to the growth phase (Anagen). LED infrared light (wavelength 800-1200nm) can irradiate the skin to a depth of 3-4cm. It is often used in combination with red light for better results. Infrared light penetrates deeply into the hair follicles to promote damaged repair. 180 lamp beads Upgraded 4+1 treatment mode 5-speed time adjustment Multi-function controller 30W high energy 5-speed treatment mode to meet different needs (M+/M-: 1-5) Low-speed: anti-hair loss and relief of scalp inflammation High-speed: activate hair follicles and strengthen hair roots Pulse 10HZ: promote blood circulation and enhance metabolism Pulse 40HZ: enhance scalp cell vitality Breathing mode: promote sleep and relieve tension and stress 540 light waves 3 chips in 1 LED: 660nm+850nm+940nm Packing list: Red light therapy cap*1 Power adapter*1 USB*1 Controller*1