Brand new. AC 110-220V Power Supply Speed Governor For ER11 Chuck CNC 500W Spindle Motor Dimension: 130mm×100mm×50mm (L*W*H) Input: AC110V-220V ±10% 50/60Hz Output Voltage: 0-100V DC Current: 6A Features: --Can support AC 110-220V power input. --It is used with the ER11 Chuck CNC 500W Spindle Motor. --Equipped with a fuse protection and better performance. --power indicator, and more convenient to use.