1Green light (532 nm)-Penetration of 0.5-2mm of the skin, with good sedative effect on sensitive skin, body and mind. 2Blue light (423 nm)-Penetration of 1mm into the skin is very helpful for killing acne bacteria, inhibiting sebaceous glands, preventing wound infection, and calming allergic skin. 3Red light (625 nm)-Penetrating the skin for 1-6mm has a good effect on skin cell regeneration, promoting blood circulation, relieving acne mark scar, allergic dermatitis, relieving pain and activate effective ingredients, which has a very good effect. 4Intelligent 38-60 hot compress, stimulates blood circulation, increases oxygen content in blood, opens pores, dilates blood vessels, and rapidly absorbs nutrients on the skin. 5Adopts 4 spectroscopy technology, different color light source irradiation for different effects to the skin care and treatment.