Socket With Usb Port. This product plugs directly into the power socket and includes indicator lights that show the charging state of connected USB devices. Indicator lights turn red during charging and blue when charging is complete. Automatic self-discriminating enables this product to detect the connected device type and charge using a suitable charging current. Independent control for each port enables simultaneous charging of different device types with best-fit charging conditions for each. Uses reversible USB ports so cables can be inserted without the hassle of checking the plug’s orientation. This device powers two 12 V sockets and USB 2.0 ports (combined total of 5 V / 2.4 A). Compatible with vehicles equipped with a power socket of an internal diameter from 21.0 mm to 22.5 mm (0.83 in. to 0.89 in.). *By request/order.