Kia Optima Daytime Running Light Bulb Size

The Kia Optima daytime running light requires a 1156NA bulb size for the specific lighting component. Available data for the bulb covers the period from 2012 to 2013.

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
2013	1156NA
2012	1156NA (From 11/29/2011)

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base, natural amber glass. 12V, 21W.	1156NA

Other Locations

Additional Notes

The 1156NA is the sole bulb type listed for the Kia Optima daytime running light across both specification rows.
The 1156NA follows the ANSI standard applicable to the US and Canadian markets, meaning it conforms to a defined set of electrical and physical tolerances recognized across North American automotive applications.
It is a single-filament bulb, which is typical for functions requiring a steady, non-switching light output such as daytime running lights.
The 1156NA uses a BA15s bayonet base, a single-contact mount where the bulb locks into the socket with a quarter-turn motion.
The natural amber glass of the 1156NA produces a warm-tinted output without the use of a colored lens or coating, distinguishing it from clear-glass variants in the 1156 family.
The bulb operates at 12V and 21W, values consistent with standard automotive low-voltage systems and moderate-output signal or running light applications.
The 2012 Kia Optima specification carries a production date qualifier of "From 11/29/2011," indicating the 1156NA fitment applies only to vehicles assembled on or after that date within the 2012 model year.