The Ferrari 458 Spider high beam and low beam headlight bulbs both utilize a D1S size. The replacement chart covers 2012 to 2015 production 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 D1S bulb is the sole bulb type specified for the Ferrari 458 Spider across both the high beam and low beam headlight positions for the 2012-2015 model years.
D1S is a High-Intensity Discharge (HID) xenon bulb, meaning it produces light by passing an electrical arc through xenon gas rather than heating a filament, which is the method used in conventional halogen bulbs.
The D1S bulb operates at 85 volts and 35 watts, with the high voltage requirement being characteristic of HID discharge technology and necessary to sustain the arc between the electrodes.
A defining feature of the D1S type is its integral ignitor, meaning the ignition component is built directly into the bulb unit rather than housed separately in the ballast or socket assembly.
The D1S uses a PK32d-2 base, which is a keyed connector designed to prevent incorrect bulb installation and is not interchangeable with other HID base types such as PK32d-3, which is found on the D2S.
D1S bulbs are specified for use in projector-type housings, which use a lens and reflector system to produce a controlled, focused beam pattern, as opposed to reflector-type housings.
The D1S designation conforms to ECE (Economic Commission for Europe) standards, indicating the bulb meets regulatory requirements applicable across Europe and numerous other markets worldwide.
Because the high beam and low beam positions on the 458 Spider both use the D1S, the projector housing likely employs a bi-xenon shutter mechanism to switch between beam patterns using a single bulb per side rather than separate bulbs for each function.