For VW: Polo, Bora, Bettle, Golf MK4, Jetta MK4, Passat B5 Jetta 2011-2014 1.6L Note: 1. Compatibility is for reference only. Please compare the product number with the original part number before purchase! 2. This switch is suitable for Volkswagen/Skoda/seat models with large plug switches. However, due to some differences between different countries, some POLO models cannot use this switch. Before you buy, make sure the plug is 100% suitable for your car. Automatic headlight Set the switch to AUTO and the light will automatically turn on/off when the ambient brightness is below/above the set value. Three lighting modes: A. Tunnel mode (reaction time: 1 second) B. Normal mode (reaction time: 3 seconds) C. Delay mode (reaction time: 5s) 2. Automatic fog light Set the switch to AUTO, when the ambient brightness is lower/higher than the set value, the fog light/wide light on/off 3. Flameout mode A. The low beam will continue to light after the flameout (time setting range: 0-60s) 4. Rapid response It takes less than 1 second to automatically turn on the headlights. 5. Protect the battery The car headlights will turn off automatically. After the car is started, the light will illuminate after 3 seconds. 6. Unlock the lights When the ambient brightness is low, the indicator/low beam will automatically illuminate. (Time setting range: 0-60s) 7. Restore factory settings Package Contents: 1 * Light sensor module automatic headlight switch