Industrial-Grade 3x4" Electric Sander Kit comes with an electric sander, power supply, DC Cable, and a pad of your choice. Please do read the TITLE careful, so you know which pad option you are purchasing. Grab one today while Supply last. The main input voltage is 100-240v AC, and output 30v DC, 5A. It has 85% min. efficiency with 47-63 Hz main frequency. The Operating Temperature is 0-40 °C / 23-105 °F the with humidity of 10-90% H. Thank you for looking!