The Hyosung GT250 front turn signal requires a 5008 or 232 bulb size, while the rear turn signal uses a 5008 bulb size. The replacement chart contains vehicle production years and bulb size specifications covering 2007 through 2017.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 5008 is the dominant bulb type across the Hyosung GT250 turn signal specifications, appearing in both front and rear positions across nearly the full model range covered.
The 5008 operates at 12 volts and uses a BA15s bayonet base, which is a single-contact base with a 15mm collar and a single locating pin.
As a single-filament bulb, the 5008 is dedicated to one lighting function rather than serving dual roles such as combined stop and tail operation.
The 5008 is described as a lower wattage variant of the 1156 bulb. While the two share the same BA15s bayonet base, they are not the same bulb, and wattage differences between them are a relevant fitment consideration.
The Hyosung GT250 (2011) front turn signal departs from the otherwise uniform 5008 specification, using a 232 bulb instead.
The 232 is a festoon bulb, meaning it is cylindrical in form and held in place by contact at each end rather than by a base socket.
The 232 uses an SV8.5 base designation, which refers to the 8.5mm contact spacing on a festoon-style holder, and it operates at 12 volts with a rated output of 3 watts.
Because the 2011 front turn signal uses a physically different bulb type with a different mounting style than the 5008, the two are not interchangeable despite both being 12-volt bulbs.
Both the 5008 and 232 carry ANSI standard designations applicable in the United States and Canada, indicating conformance to standardized performance and dimensional criteria within those markets.
The rear turn signal position on the Hyosung GT250 uses the 5008 without exception across all years listed, from 2007-2017.