For the 2017 Land Rover Discovery, the low-beam and high-beam headlights both use H7 bulbs. The supplied fitment data does not indicate a separate bulb size or a variation by headlight type, so verify the existing bulb and housing before ordering.
Most other listed exterior and interior lighting is LED-equipped rather than using a replaceable bulb size.
- Fog lights: LED
- Front and rear turn signals: LED
- Brake, center stop, tail, reverse, parking, and license plate lights: LED
- Front and rear side markers: LED
- Interior dome, map, glove box, and trunk lights: LED
Use an H7 replacement for either headlight beam, while the LED applications may require servicing the LED-equipped lamp assembly rather than installing a conventional bulb.