AUTOMATICALLY SELECTS BETWEEN 7 VOLTAGE OUTPUT LEVELS FROM 15V - 24VCOMPATIBLE WITH MOST NOTEBOOK COMPUTERS FROM ACER(R) ASUS(R) COMPAQ(R) DELL(R) HP LENOVO(R) TOSHIBA(R) & MORE9 CONVERTIBLE PLUG TIPS ENSURE PROPER POLARIZATION & FITOVERLOAD OVERCURRENT & OVERHEAT PROTECTIONLIGHTWEIGHT & COMPACT DESIGNLIFETIME WARRANTY70WShipping Dimensions : 25.10in X 15.60in X 5.10inEstimated Shipping Weight : 12.0299