The charger internal contains a safety fuse that will blow when the device or charger fails,automatically cutting off the power and protecting the device,the fuse can be replaced by yourself. Overheating Protection with Smart Chip,overload protection with high quality wires Retractable, linear length 1.5M Universal Car Power cord for DVD players, GPS, label printer, Bluetooth speakers, Spectra breast pumps, piano keyboards, external hard drives, RCA, Blu-ray, , portable DVD Player, CD player, mini Fan, LED strip, Camera, Mp3, Mp4, router, Clore jumper battery, and more 12V devices DC jack size 5.5x2.1mm,suitable for models, bus, SUV, Van, Car, Minibus, Truck, Boat, or . Our products are in compliance and include numerous safety mechanisms, including protection against short circuiting, overvoltage, overcurrent, and internal overheating. Product Name:Car Charger Cable Specification: Standard Lighter Punch To Dc-12V Power Plug:External Diameter: 5.5mm Internal Diameter: 2.1mm Outer Diameter: 3.0mm Voltage: 12V Current: 1A Length: 1.5M Input Connection: Standard Lighter Male Output Interface: Dc-12V Power Plug Material: copper colour: black Package Contents: 1 x car charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.