The INFINITI Q60 high beam headlight uses a D2S bulb size, while low beam headlight applications accommodate D2S and H1 bulb sizes. The replacement chart covers 2014 to 2015 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The D2S is a high-intensity discharge (HID) xenon bulb operating at 85V and 35W, designed exclusively for projector-type housings. It uses a P32d-2 base and requires an external ignitor to initiate and sustain the arc discharge, meaning it is not a direct drop-in replacement for halogen systems.
The H1 is a single-filament halogen bulb rated at 12V and 55W, fitted with a P14.5s base. Both the D2S and H1 conform to ECE standards, making them applicable across European and worldwide markets, with the H1 also carrying approval for use in the United States and Japan.
The INFINITI Q60 (2014-2015) uses the D2S bulb for the high beam headlight across both model years, indicating a consistent HID projector setup for that function throughout this period.
The low beam headlight on the Q60 lists both D2S and H1 fitments for 2014-2015, reflecting the existence of two distinct headlight system configurations rather than interchangeable options within the same housing type.
The H1 fitment for the 2014 low beam headlight carries a "To 06/2014" qualifier, indicating that this halogen configuration applied only to vehicles produced up to that production cutoff within the model year.
Because the D2S operates at 85V and requires an external ignitor while the H1 operates at 12V with a direct filament, the two bulb types are electrically and mechanically incompatible with each other's housings and wiring systems.