1. Function: Enjoy warmth and benefits in cold winters, widely used to raise car temperature, warm your feet and legs, and melt the fog and frost on the car windshield. 2. Long Service Life: Low power consumption, high thermal efficiency, does not affect the power of the original car, continuous use for 10 hours. 3. Not Affect Ignition: Car heater does not affect the ignition, and completely solves the problem of no power when the air conditioner is turned on. 4. Characteristic: mixing, small size heater, easy installation, energy saving and wear , low noise (almost no noise). 5. Premium Material: Adopt the most advanced green heating quartz heating tube. The machine is all metal shell. The casing can also be used for a heating effect. 6. Advantage: High thermal conversion rate, real time heating, with a plug on the line, it is recommended to connect to the main power supply. Spec: Item Type: Car Heater Material: Copper, Iron Characteristic: Single Sided Four Hole Type Color: Gray Voltage: 12V Power: 8A Applicable Models: Can be installed in fuel vehicles with water tank heat dissipation How to Use: 1. Ensure the direction of water flow through the cooling system 2. Connect the hot coolant hoses to the inlet and outlet of the heater. 3. Wire the heater switch to your vehicle's electrical system The red wire of the switch is connected to the positive pole of the power supply and heater. The blue wire of the switch is connected to the negative pole of the heater. The black wire is connected to the negative pole of the power supply. packing list: 1 xCar Heater 4 x Hose 6 x Fixed Buckle 4 x Connecting Pipe 1 x Switch 1 x Wrench