New Aftermarket Headlight Control Switch with Premium Quality. Set switch to auto, lights turns on/off automatically when ambient brightness is lower/higher than the set value. Quick response - it needs less than 1 second to be automatic open headlight. Protect your battery - before the car starts, lights turn off automatically; after the car starts, lights turn on after 3s. According to factory specifications, perfect match to car. Robust plastic housing, not easy cracking, ultra . Directly replace the old or broken power window switch, easy to install. Replacing manufacturer part number for reference:1C0941531, 3BD941531, 3BD941531A. Condition: New Manufacturer Part Number:1C0941531, 3BD941531, 3BD941531A Three lighting Modes: 1. Tunnel mode (Reaction time: 1s) 2. Normal mode (Reaction time: 3s) 3. Delay mode (Reaction time: 5s) Fitment: Fit for MK4 1999-2004 Fit for B5 / B5.5 1998-2005 Fit for 9N / 9N3 1999-2001 Fit for Seat: Fit for SEAT I (7V8, 7V9) (1781 - 2792 , 90 - 204 PS) Fit for Fabia I Hatchback (6Y2) (996 - 1984 , 50 - 130 PS) Fit for I Hatchback (1U2) (1390 - 1984 , 60 - 180 PS) Fit for Fabia before 2015 (2015 year is not included) Note: Installation guide not included, Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Color:Black Material:plastic Package Contents: 1 * Headlight Switch Light Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.