For the 2020 Audi S5, both the low-beam and high-beam headlights use LED lighting. The supplied fitment data does not identify a separate bulb size or a projector-versus-non-projector variation, so no additional headlight distinction is listed.
The exterior lighting is also LED-equipped, including the front and rear turn signals, daytime running lights, cornering lights, parking lights, side markers, tail lights, brake lights, center stop light, reverse lights, and license plate light. No fog-light bulb is listed in the supplied data.
Interior lighting is primarily LED as well, covering the dome, map, glove box, trunk, vanity, and other interior lights. The glove-box light is the exception, with bulb size 2821. The step light is also listed as LED. When replacing a light, verify the original component and connector before ordering, especially where the vehicle’s original LED assembly may be integrated rather than a conventional replaceable bulb.