UST Auto Volt XL Adapter, Red The Volt XL 12 V USB adaptor conveniently charges USB electronics through your car's 12-volt outlet ("cigarette lighter") 2 USB charging outlets: Outlet 1 outputs 5 volts, 1A, Outlet 2 outputs 5 volts, 2.1A Red LED charge indicator on charger top Spring loaded tip Size: 2.2"H x 1"D