• Product Specifications: Lens Color: Clear Black; Size: Diameter 0.7 inch (18 mm) / Thickness 0.04 inch (1 mm) Installation: Just replace the auto light sensor lens on the car side when removing the sensor, please be careful not to disconnect the sensor wire • Reference compatibility: Compatible genuine model numbers: 89121-B203 / 89121-30020 / 89121-50020. *If the cover is 0.7 inches (18 mm) diameter, it can be installed • Reduce Sensor's Sensitivity: Recommended for those who suffer from the problem of auto light up in a little lighter or dark. Reduce the sensitivity of the sensor and delay the light on • Note 1: We do not provide support for installation, if you are not confident please install it by a professional. In addition, installation is at your own risk. We will not be responsible for any damage during installation • Note 2: May not be compatible with some years or grades. Please check the shape from the product images