Lamp beads: 110 (630:850=1:1) 55 pcs at 630nm and 850 nm respectively The cap has a diameter of 20cm Height of 14cm, and a net weight of 190g Rated power: 10W Input voltage: 5V Input current: 2A Color: Light Grey Function: Mode 1 permanent lit Press Mode 2 again, the switch turns on the green light, and 10HZ operations Press mode 3 again, and the switch turns on blue light and works at 40HZ Press and hold for 2s to shut down the machine, and the machine is automatically timed to shut down for 20min 1.Number of LEDs: 48PCS (25mW LED chip) 2. Input voltage: AC 100-240V Output voltage DC 5V 0.5A 3. External battery: not supported 4. Shell material: OK clothandTPU 5. Optical power: 25mw 6.Size: 227.7x207.5x8.3mm 7. Spectrum: 660:850 8. Gross weight: 0.6kg 9. Maximum actual power: 25mW or pc Instructions for Use: 1.Put on the LED light therapy Hat 2.Plug power supply into electrical outlet. 3.Press and hold on E-off switch to start device. 4.You can only see the Red LEDs: the others are in the Infrared light spectrum and can't be seen with the human eye. 5.Treatment time is 20 minutes, it will automatically shut off after 20 minutes. The device may be used multiple times per day. 6.Press and hold on or off switch at any time to stop the device.