Description: Brand new and high quality Feaures: Standard USB port, such as portable power source, notebook, desktop computer, etc. Can put led into a purse, also can hang on the keys, very portable. Double-sided USB design, the pros and cons can be lit, liquid crystal display backlight lamp beads thin, ultra-bright, USB jack can be placed in any place,business travel essentials. Touch Switch :Touch the area belonging to the black area in the back of a small lamp Specifications: Electric current: 200MA Power: 1W Voltage: 5V Color Temperature: White: 5500K Warm white: 3200K LED number: 6 led Package includes: 1 x Mini LED Lamp