Hyundai Kona Side Marker Bulb Size

Additional Notes

• The 12961 is a miniature wedge bulb in the T10 form factor, using a W2.1x9.5d base and rated at 12 volts and 5 watts. It is a Philips part number designation rather than an industry-wide standard bulb code.
• The T10 wedge base design means the bulb is held in place by friction from its plastic wedge-shaped base rather than by a bayonet or screw mechanism, which is typical for low-wattage marker and courtesy lighting applications.
• The Hyundai Kona uses the 12961 bulb for the rear side marker across the 2018-2023 model years covered in these specifications.
• The 2018-2020 model years carry a conditional note specifying that the 12961 fitment applies only to vehicles equipped with Halogen Capsule Headlamps, indicating that alternative headlamp configurations on those vehicles may correspond to a different rear side marker bulb.
• The 2021 and 2023 model years list the 12961 without any headlamp-type condition, suggesting the fitment applies regardless of headlamp configuration for those years.
• At 5 watts, the 12961 operates at a low power draw consistent with side marker functions, which are required to remain illuminated continuously during vehicle operation rather than serving as high-intensity signaling lamps.
• The W2.1x9.5d base designation describes a wedge contact with a 2.1mm wire contact width and a 9.5mm base length, which is a standardized international base code used across multiple bulb manufacturers beyond Philips.