Adapter and converter combo unit. 2 modes: Adapter only or adapter/converter combination. For use with U.S. appliances, 110V(volt)/120V, overseas. Converts foreign electricity, 220V/240V, to 110V/120V. Easy-to-use all-in-one adapter and converter combo unit fits electrical outlets in most commonly visited countries. Built-in surge protector keeps your electrical appliances safe from spikes in foreign electricity. 1857 watts.