Hyundai Veloster Dome Light Bulb Size

The Hyundai Veloster dome light requires bulb size 904 or DE3175 depending on the specific version of the vehicle. Available data covers a range from 2012 through 2021.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2021	904
2019-2020	DE3175
2012-2017	DE3175

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	904
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175

Other Locations

Additional Notes

The Hyundai Veloster dome light uses two distinct bulb types across its model years: the DE3175 festoon bulb and the 904 miniature wedge bulb.
The DE3175 is a festoon-style bulb measuring 31mm in length with end-cap contacts, operating at 12V. It follows the ANSI standard applicable in the US and Canada.
The 904 is a T10 miniature wedge bulb rated at 12V and 8W, also conforming to the ANSI standard for the US and Canada. Its wedge base differs fundamentally from the end-cap contact design of the DE3175, making the two types non-interchangeable.
The Hyundai Veloster (2012-2020) specifies the DE3175 festoon bulb for the dome light across eight model years.
The 2021 Veloster departs from the DE3175 specification, requiring the 904 wedge bulb instead. The differing base types mean a DE3175 bulb cannot serve as a direct replacement in the 2021 model year.
Festoon bulbs like the DE3175 make contact at both ends of the bulb body, while wedge bulbs like the 904 are held and connected through a pinched glass base. These are physically incompatible mounting formats.
Both bulb types operate on a standard 12V automotive circuit, consistent with typical vehicle interior lighting systems.