2015 Bentley Continental GTC Bulb Size

Misconception: people often think all headlight or interior bulbs are interchangeable by size alone. It feels true because many bulbs look similar and numbers seem straightforward. Think of it as a surface-level match that's easy to check, which is a helpful mental model but incomplete. What is true: the 2015 Bentley Continental GTC uses specific bulb types for headlights, fogs, indicators and interior lamps, and fit, wattage and connector shape matter as much as the size. The rule of thumb is to match the OEM specification or a reliable fit guide, not just a single number. Implications: choosing the wrong bulb can give poor beam pattern or cause fitment issues. Quick recap and quick tests: verify the part number, test fit before final assembly, and check brightness and beam alignment. This page includes affiliate links; I may earn a small commission at no extra cost to you if you buy through them.