Specification:Power: 5WInput Voltage: 5VSpectrum: 660nmUSB Charging: USB Direct ChargingNumber of LEDs: 1 Pcs 5WDimming: Two Gear DimmingDimension: 118 x 25 mm/4.65" x 0.98"Features:- We can use the power bank USB to charge.- It can be used as an emergency mobile power supply to charge the mobile phone.- This infrared phototherapy lamp is easy to carry and comes with a built-in battery.- Portable and lightweight,so you can use it not only at home, but also in travel hotels, and enjoy phototherapy anytime, anywhere.- The application range can be automatically adjusted according to the size of the wound, which can concentrate more light and have better effect.- You don't need to buy any other accessories, you can use it after charging up and turning on the switch. Target pain in any part of your body and start treatment.- PRODUCT DECLARATION: This product cannot be used as a direct substitute for any medicine, and it is not used to diagnose, alleviate, treat, cure or prevent any disease. Package Included:1 x Light Notes: 1.Manual measuring, please allow 1 ~ 5 mm error,thank you.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.Please understand, thank you