1. USB adapter USB output 5V 2.1A,with the adapter and DCB120 for 10.8v/12v Li-ion battery,you can charge your mobile phone and other USB device. 2. the light button once to turn on the light half-bright, once to fully light, and once to alert. Long to close. 3.Built-in intelligent high-performance circuit protection board, over-current, high-voltage protection for your mobile phone, the stability of charging current, with mobile phone wake-up function, usb to charge the mobile phone wake-up function be turned on. 4.DC 10.8V/12V output: 10.8Vdc/12Vdc, 1.5A, DC port can supply power to other electrical equipment. working lamp, electric torch:a. input: 10.8Vdc - 12Vdc, 1.5A Max. b. output: 1 X USB 5Vdc 2.1A c. brightness: 280lm d. led power dissapension: 6w e. led type: chip/white f. it can be used for 10.8v/12v li-ion battery: dcb120. Colour:Yellow Material:ABS Package Contents: 1 x Adapter with flashlight 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.