UCEC Extra-Bright 2 LED Reading Light with Clip On and 2 Brightness Settings Bundle (Black) Flexible gooseneck puts light right where you need it. Choose just the right amount of light with two brightness settings at the touch of a button. Wide, padded clamp securely grips objects up to  inch thick. Low power consumption LEDs powered by AAA batteries or 36 inch usb cable (batteries and cable Not included). Never wait to recharge. Great for camping and travelling. Also great for sewing, crafts, music, kids and more.