This Dual USB Socket charges two devices simultaneously while also displaying the batteries output. The total output 4.2A load is split 2.1A per side as needed. Enough power to charge phones, pads, and tablets quickly and efficiently. Protective dust cap extends the life of the charger. Constructed of injection molded nylon. Installation is as easy as drilling a 1-1/8" hole, inserting the socket body, tightening the locking nut, and connecting the wires. Also fits Sea-Dog® Power Socket Shell (426100) and Mounting Bracket (426105). Output DC 5V/4.2A. Input 8-32VDC. Red LED display. IP65 rating.