For KIA Optima accessories window closer Main Features 1. Plug and play installation, easy installation, no need to cut any wire of the original car. 2. Military level precision electronic components used. 3. Imported high anti-interference chip used. 4. We use environmental protection waterproof standard to do waterproof of the circuit. 5. High power vacuum relay used. 6. We use current amplification calculating function to close the windows. 7. Original car wire harness and connectors used. 8. Will not affect any of the original window's AUTO functions such as one-touch rolling up/down and anti-pinch. Technical Parameters Working Voltage: 9~14V Working Current: 8mA Output current during window closing: 15A Working Temperature: -20 ~ +80 Windows Function Installations Certifications Factory