Instapark UL01 Pocket-size Flexible 6-LED USB Reading Laptop Keyboard Lamp, 2-Pack, Color White Directly plugs into any standard USB output, such as the one on a PC, laptop computer, USB battery pack and etc. Made of flexible silicone, easily adjustable to virtually any angle for private reading, writing, typing and more Ultra-compact and super-light, weighs less than 1 oz, easy and convenient to carry around Features 6 Energy-efficient, long-life, and super-bright LED bulbs, rated for 50,000 hours of use 2 per pack, a significant saving of $5 vs buying two single packs at $5.99 each