Hrph Reading Lamp with 28 Bright LED Bulbs Flexible Gooseneck and Desk Clamp Plugs PC Mac's USB Port to Light-up its Keyboard Size: 34.5715.1cm 3 Brightness Settings - Toggle between low, high and medium light as required USB or Battery Powered - Great for use as a desk light Handy Clamp - Clips to headboards, desks and tables Flexible Neck - Direct lighting onto your keyboard or book without disturbing others