The Hyundai Kona Electric tail light requires a bulb size of 1157 for the rear lighting assembly. Data for the specified component covers the range from 2023 to 2024.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Hyundai Kona Electric's inner tail light for 2019-2020 uses the 12961 bulb, a Philips part number designating a miniature wedge-type T10 bulb with a W2.1x9.5d base, rated at 12V and 5W. This fitment applies only to vehicles equipped with halogen capsule headlamps.
The outer tail light for the 2019-2020 Kona Electric (with halogen capsule headlamps) takes the P21/5W, an ECE-standard dual-filament signalling bulb with a BAY15d bayonet base rated at 12V, 21W for the main filament and 5W for the secondary filament.
The 2023-2024 outer tail light position uses the 1157, an ANSI-standard dual-filament bulb also rated at 12V, 21W/5W and sharing the BAY15d bayonet base with the P21/5W.
Although the P21/5W and 1157 share the same BAY15d bayonet base and identical wattage ratings, they originate from different standards bodies. The P21/5W follows ECE regulations used in Europe and worldwide markets, while the 1157 follows ANSI standards used in the US and Canada. These two bulbs are not confirmed interchangeable for the Kona Electric without verifying market-specific fitment requirements.