When doing replacement or upgrading on 2010 – 2012 Lexus HS250h with capsule halogen headlamps, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight2010 – 2012 H11
High Beam Headlight2010 – 2012 9005
Front Fog Light2010 – 2012 H8/H11/H16
Back Up Light2010 – 2012 921
Daytime Running Light2010 – 2012 9005
Dome Light2010 – 2012 DE3175
Front Side Marker2010 – 2012 194
Front Turn Signal2010 – 2012 3457
License Plate2010 – 2012 194
Parking Light2010 – 2012 3357NA
Rear Turn Signal2010 – 2012 7440NA
Interior Door2010 – 2012 194
Trunk2010 – 2012 194