Function: 1. The temperature can rise quickly under the battery with normal voltage and power level, and the temperature can be raised within 5 seconds. 2. With a silent fan, there is no noise during operation, creating a good driving environment. 3. High quality iron material, hard, corrosion resistant and high temperature resistant, long service life and good performance. 4. High quality iron material, hard, resistant to corrosion and high temperature, has long service life and good performance. 5. It is used to defrost and heat your car to better and precisely suit your needs. Specification: Item Type: Car Heater Material: iron Color: as picture shown Voltage: 24V Power: 600 W Product Size: Approx. 14.8 x 11.5 x 6.5cm/5.8 x 4.5 x 2.6in Installation method: This product does not include the cigarette lighter plug, which is a wiring model. Do not disconnect the internal circuit and dedicated circuit, connect firmly when installing, use red positive wire and black negative wire. To avoid the fan from burning out, it is recommended to use copper wire and a car generator Package List: 1 x Car Heater 2 x clamp 1 x positive terminal 1 x negative terminal 1 x Accessory bag 2 x aluminum foil tube 1 x English manual Note: 1. To change the installation of the product, please go to the car repair shop or install it in the car repair, do not modify the car circuit privately; 2. Install the product and draw power from the starter motor in the car engine compartment. Do not draw power from other electrical systems other than the car's starting circuit. 3. After installation, before starting the car, be sure to turn off the heater circuit breaker so as not to make it difficult to start the car and increase the car's starting load. 4. Wait until the idle speed stabilizes after starting the car, then operate the defrost switch!