When doing replacement or upgrading on 2015 – 2017 Kia K900 with headlamps HID, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight2015 – 2017 D3S
High Beam Headlight2015 – 2017 9005
Back Up Light2015 – 2017 921
Glove Box2015 – 2017 6418
Trunk2015 – 2017 DE3423