Standard Connector Size---The size of the cigarette lighter connector is 5.5mm x 2.1mm, it is compatible with most DC plugs. Input: 12V-24V, Output: 12V, Max Current: 2A. | Wide Applications---Cigarette lighter is widely applied to vehicle accessories like camera, DVR, monitor, LED strip light, air filter, GPS, DVD player, Bluetooth speaker and so on. It is mainly used in Car, Truck, Bus, Van, Boat, RV, travel trailer, etc.. | Great Design and Quality Material---With a built-in 2A fuse, no need to worry about danger caused by the cigarette lighter socket. A switch to control the power supply with ease and a indicator on it to notify if the lighter is working. The cigarette lighter shell is made of high quality heatproof ABS plastic housing and the wire uses pure copper material. | How to use the Car Cigarette Lighter---If the cig. Lighter cable is short, the included DC adapter plug helps extend it by connecting to a 1.5M DC power cable(included). Also, we have added a bonus test cable which is very convenient for testing those with black and red power cables. | Warranty and Customer Service---We offer one month money back, two years new replacement and lifelong customer service. Anything unclear, please contact without hesitation, we will reply back within 24 hours usually.