Features: Cigarettes lighter male to DC5.5x2.1mm male power extension cable with switching control button, convenient to use. Input 12V-24V, output 12V-24V, output voltages equal to input voltages, support up to 2A current. The cigarettes lighter with switching control at the rear that can be controlled power without the need for repeated insertion and removal. DC5521 interfaces is inner positive electrode and outer negative electrode. Suitable for small power car mounted electrical product, car audioed, LED light, fan, and other 5.5x2.1mm interfaces product. Specifications: Material: Plastic Color: Black Cable Length: about 300cm/9.8ft Input: 12V-24V Output: 12V-24V Package Includes: 1x Car Cigarettes Lighter to DC5521 Power Cable with Switches note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.