This is a complete set of H7 3000K Yellow Xenon HID Kit for your Fog Lights. This kit includes 2 x H7 3000K HID Bulbs, 2 x Advanced A/C Digital HID Ballasts. This kit produces 3000K Yellow light for a brighter light output.Our HID Ballasts are A/C digital which produce stable lights due to better current control, thus leads to more reliable performance and longer product life.This kit ONLY fits ONE of these three lights, Fog OR Low beam OR High beam of the vehicle. Please find out the application for your car from the Sylvania Automotive Replacement Guide before purchase. Please also feel free to contact us for fitment questions.