Optilux / Hella Fog Light Kit is Chromium Electron Blue and measures 2.8" W , 4" D. Optilux / Hella Fog Light Kit has applications for vehicles of all makes and models, the Optilux / Hella Fog Light Kit line of auxiliary lighting brings a revolutionary style to the compact frontal lighting market. Flexible mounting systems characterize the Optilux / Hella Fog Light Kit series with 180° rotation flexibility on most models. All models feature die cast metal housings, 55W H3 bulbs, and glass lenses which ensure long life and durability. Deluxe wiring harnesses along with relays and switches are included in all kits as well as trilingual instructions in English, French, and Spanish.