This 2017 Infiniti Q50 bulb size page is designed to help you verify the correct bulb type by lighting position, so you can match the right replacement before you buy. Because the Q50 uses different LED setups depending on trim, market, and body style, checking the exact lamp location is the safest way to confirm fitment.
Use the bulb chart on this page to look up exterior and interior lights such as the headlight, fog light, brake light, turn signal, parking light, and cabin bulbs. The 2017 Infiniti Q50 may use LED lighting in many positions, while a few interior and license plate locations use common bulb numbers that are easier to replace.
Fitment can vary by trim package, lighting option, and region, so the same 2017 Infiniti Q50 may not use the same bulb setup on every car. Some versions are fully LED in the headlights and taillights, while others may differ in the exact lamp design or replacement method. If you are considering an aftermarket LED conversion, make sure the bulb base, polarity, beam pattern, and heat management are compatible with your housing. The best practice is to check the bulb already installed in your vehicle before ordering, especially for interior lights, license plate lights, and any position where the chart lists multiple bulb numbers.