CR15D - BiXPower Car Cigarette Male Plug with 5V USB and 12V 5.5 x 2.5mm Output Ports This adapter input end is a male cigarette light plug which can plug to a 12V car cigarette light socket. Its output end has two output ports: 5V USB Port and 12V 5.5x2.5mm port. The 12V 5.5 x 2.5mm port output voltage range will be 10v ~ 15v, same as car cigarette socket output voltage. USB Port outputs 5V DC with maximum 2.4 Amps current. The male barrel connector size on cable is 5.5x2.5mm. It can be changed to different sizes by the optional C series connector tips from BiXPower. The package also comes with a 500mm ( or 20") long cable with 5.5x2.5mm male barrel connector on both ends. Input : 10V ~ 17V DC; Output I: 5.5 x 2.5mm Female Jack. Output voltage will be same as Input voltage; Output II: 5V USB Port DC, Max. Current: 2.4A; Color: Black; Safety Approval: CE/FC This adapter can be used to get power out from a car battery through a car cigarette socket socket. The cigarette male plug is used as input end and the 5.5x2.5mm barrel connector is used as output end.