White Clip On 28 LED USB Or Battery Powered Flexible Light Plug into usb port or choose wireless with 3 AA batteries (not included). Soft and warm white light. Extremely long service life. Low power consumption. 28 LED lights. Clip on or stand upright. Flexible and adjustable metal neck. Lightweight, compact, space-saving, easy to carry and handle. Ideal for students, travellers, office workers, etc.