Our new upgraded car heater adopts Humanized design, environmental protection and practical, less energy, low noise, no open flame, no damage to the battery, safe and reliable. It is designed to quickly clean the frost, even remove snow on your vehicle’s windshield, keeping your view in driving is clearly. How To Use Step 1. Wipe the location to be installed with a towel. Step 2. Tear off and stick double-sided glue on the installation position. Step 3. Paste the heater on it . Step 4. Just plug in the cigarette lighter socket and open it. Parameters: Material: plastic Cable length: about 150cm Power: 12V ,150W Color:Red-Black Fixing method: fixed with double-sided adhesive. Package Includes: *1 x portable car heater *1 x self adhesive tape *2 x screws. Note: - Please keep the engine started when you used this car heater ! -The vehicle should be around 15amp, the heater will worked fine. -But if your voltage is much less than 15amp, the heater maybe stop working. -If so, please adjust your vehicle voltage.