This lamp is designed for inventive and creative people. It"s large magnifier and 12 super LEDs provide incomparable sight for anyone who needs it. Runs on AC or 3 D batteries. 12 Super LEDs never need replacing. Five 2x magnifier with One 5x bifocal insert for fine details. Large-press on/off button and adjustment handle. 17inch flexible neck attaches to a 24inch solid stand. Stable weighted floor base with no-slip foot pads. Powered by included AC Adapter (UL Listed E235010) with a 6ft cord or 3 D Batteries (not included).