This Double USB Power Socket has no LED indicator light so it will not drain the battery when not in use. Capable of charging two devices simultaneously. The total output 4.8A load is split 2.4A 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 with terminal spade contacts. Installation is as easy as drilling a 1-1/8″ hole, inserting the socket body, tightening the locking nut, and connecting the wires.