Menz(TM) Cigarette Lighter Extension Cable 4 Meters (13 Feet) 12V Socket 4 meters (13ft) length gives you convenience of connecting your car/ boat 12V power source to your cooler, light, car charger for cellphones/ tablet or other devices Durable & heavy duty cord. OD 5.2mm thick (inner cord OD:2mm), max voltage 300V, meet needs for all 12V power source occations (Warning: only use in 12V power source) Changeable fuse, protects your device from overload. Power indicator (red light) For low current use only, not for heavy current.