3 Adjustable Colors: Each head has 5 good quality leds. 3 color temperatures of cold light, warm light and natural light. It provides flexible lighting choice and fully satisfies different lighting needs with eye-caring, bright and no-flicker light during reading and working. Battery & USB Operated: Power the music stand light by 3 AAA batteries(not included) or use USB cable to connect the usb port on the computer or power bank. Convenient and easy to use. The light is not rechargeable, it wont not work until it connects electricity. Portable & Convenient: Ultra lightweight with less than 100g and spaceless, easily fit into carry-on suitcase or pocket, makes it convenient to carry during traveling. Perfect for night-time reading, music stands, electrical keyboard, orchestra pits, craft tables (DIY), kindle, ipad, manga, magazine, ect. Clip-on & Free Standing: The maximum width of clamp is 3CM/1.18 inch (We recommend to use on the width of 2 cm/0.8 inch). Flexibly clip it on books, computer, e-reader, manga, desk or set it stand on table, piano or anywhere you need. Adjustable gooseneck makes it easy to twist and enjoy the perfect lighting direction and good viewing. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store