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.
| Low Beam Headlight | 2015 – 2017 | D3S |
| High Beam Headlight | 2015 – 2017 | 9005 |
| Back Up Light | 2015 – 2017 | 921 |
| Glove Box | 2015 – 2017 | 6418 |
| Trunk | 2015 – 2017 | DE3423 |