Using this AerPro car power socket adaptor is a breeze. Just plug it into your car's 12 - volt or 24 - volt accessory socket. You can then connect your smartphones, iPadsᵀᴹ, or tablets to either the three power sockets or the USB - A port for charging. Remember, the total power capacity of the sockets is 10 amps, and each individual socket can handle a maximum of 5 amps. The USB - A port has a total output of 1.2 amps, so don't connect devices that need more power than that. For safety, the adaptor has a 10 - amp fuse. If something goes wrong, the fuse will blow to protect your devices. To keep it in good condition, clean it regularly with a dry cloth. Avoid getting it wet, as this could damage the electrical components. When not in use, store it in a dry place.