Kia Spectra5 Tail Light Bulb Size

Additional Notes

• The Kia Spectra5 uses the 2357 bulb size for the tail light across all available model years, spanning 2005-2009.
• The 2357 is a dual-filament bulb, meaning it serves two lighting functions within a single unit, typically handling both running light and brake light duties.
• The 2357 operates on a 12-volt system with a dual-wattage rating of 26.9W and 8W, corresponding to its high and low filaments respectively.
• The 2357 uses a BAY15d bayonet base, a two-pin offset base design that ensures the bulb seats in a fixed rotational position within the socket.
• The 2357 is an ANSI-standardized bulb recognized in both the United States and Canada, indicating conformance to a defined set of electrical and physical specifications.
• The 2357 is described as a brighter variant of the 1157 bulb. While the two types share the same BAY15d base and are physically interchangeable in many sockets, the 2357 draws more wattage on its high filament, producing greater output.
• Because the 1157 and 2357 share the same base type, a 1157 may fit the Spectra5 tail light socket physically, though it would produce lower brightness than the factory-specified 2357 on the high filament.