Cigarette Lighter Extension Cable 12 ft 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 0.2 inch thick, max voltage 300V, meet needs for all 12V power source occasions (Warning: only use in 12V power source) 20A fuse, protects your device from overload. Boost up to 240W power. Power indicator (red light) Length: 12ft, Cord OD: 5.2mm (0.2 inch), Max amperage: 20A, Max load power: 240W 1 Year manufacturer defect warranty