This reading light has a built-in 1200mAh rechargeable battery. It can be charged by USB, PC, USB socket, car charger light.</br> It can be used in battery mode or directly into the power supply. </br> It features a sensitive touch switch, 3-level brightness adjustment (soft, bright, glare), and a white matte shade that softens the light to protect your glasses. Can be used as a reading light or a computer work light. </br> It has a color-changing charging indicator: the red light is on to indicate that it is charging, and the green light is on, indicating that the battery is fully charged. </br> The flexible gooseneck arm can be rotated 360° for easy adjustment to the angle you need. Package includes: 1 * LED clip reading lamp 1 * USB charging cable (no charger incl.)