The Lexus HS250h high beam headlight uses a 9005 bulb size while the low beam headlight requires an H11 bulb size. The replacement chart covers 2010 to 2012 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 Lexus HS250h uses the 9005 bulb for high beam headlights across all three model years it was produced, 2010-2012.
The 9005 is a single-filament halogen bulb rated at 12V and 65W, built to the ANSI standard used in the United States and Canada, and it uses a P20d base.
Low beam headlights on the HS250h use the H11 bulb for 2010-2012, though this fitment applies specifically to vehicles equipped with halogen capsule headlamps.
The H11 is a single-filament halogen bulb rated at 12V and 55W, built to the ECE standard used in Europe and worldwide, with a PGJ19-2 base, and it also carries approval for use in the United States.
The 9005 and H11 bulbs are not interchangeable with each other, as they use physically different bases, the P20d and PGJ19-2 respectively, and serve distinct beam functions within the headlight assembly.
The halogen capsule headlamp qualifier on the low beam position indicates that the H11 fitment is specific to one headlamp configuration, meaning vehicles with a different headlamp system may not share this specification.
Both bulbs operate on a 12V electrical system, which is standard for passenger vehicles, though the high beam 9005 draws 65W compared to the 55W of the low beam H11.