1.RED LIGHT & INFRARED LIGHT THERAPY:Experiments have proven that red light therapy can effectively help us to improve the condition of oily scalp and thus restore hair health. 2.POWERFUL AND EFFECTIVE: The red light therapy cap has a total of 120 light beads, 60 at 660nm wavelength and 60 at 830nm wavelength. The combination of red light with a visible wavelength of 660nm and an invisible wavelength of 830nm penetrates deep into the skin tissue, allowing the scalp to absorb energy, promote blood circulation, care for the scalp, and relieve head fatigue. 3.Pulsed Mode:Red Light Therapy Hat is available in 10HZ and 40HZ pulsed mode. Designed for people with thin skin to give a transitional cushion to the skin. If you feel that the energy is too hot, the pulse mode will be a thoughtful choice. 4.Daily Red Light Therapy:The Red Light Therapy Hat makes it easy, convenient and economical to receive effective red light therapy in the comfort of your own home. Use it for just 20 minutes a day while you read, relax, watch TV, work, or do anything The 20-minute automatic timer makes it easy to keep track of when your begins and ends. instructions: 1. Wear an LED phototherapy cap 2. Insert the power supply into the power outlet. It cannot be used for charging and can only be used when plugged into the power supply. 3. Press and hold the switch to start the device. 4. You can only see the red LED: everything else is in the infrared spectrum and cannot be seen by the human eye. 5. The processing time is 20 minutes, and it will automatically close after 20 minutes. This device can be used multiple times a day. 6. Press and hold the on/off switch at any time to stop the device. Color:grey, black Product size: 21.5 * 18cm Temperature range: 43-45 ° C Number of lamp beads: 120 (60x 660nm red light+60x 850nm infrared) frequency: Use every other day for 20 minutes.