Leadleds 18 Leds Book Light Battery Operated, Flexible Neck Clip On Reading Lights for Reading in Bed, Car, Travel, Kids (White) Multipurpose gooseneck led reading clip light lamp, wide use in most places like desk, table, bedside, bedroom, living room, reading, computer etc AC plug or USB cable or battery powered - Great for use as a desk light plugged into your PC or as a battery powered reading light(AC plug, USB cable included, battery non-included) Size in 11 inches flexible neck - Direct lighting onto your keyboard or book without disturbing others Handy clamp - Clips to headboards, desks or tables to provide a stable light source wherever needed Full manufacturers warranty and 30 day cash- back guarantee if not suitable for you purpose