Choose the factory headlight system below to see the correct bulb and recommendation path for this 2018 Kia Rio.
Source-listed fitment data supplied by CarBulbGuide. Confirm the installed bulbs and configuration before ordering.
Low beam
9003 / H4
High beam
9003 / H4
Factory setup
Without Optic: projector
Choose the factory system installed in this vehicle. Bulb sizes and recommendations change with that selection.
Representative car or sedan image
Best headlight upgrades
These products were physically tested by BulbFacts, but the tests were not performed in this exact vehicle unless a card explicitly says otherwise.
Without Optic: projector
High/Low Beam Combined: 9003 / H4
Best direct replacement
Bosch Gigalight Plus 120%
High/Low Beam Combined 9003 / H4
Estimated price$20-34
BulbFacts testedCorrect bulb size
Best Standard Projector Upgrade
The Bosch Gigalight Plus 120% is the projector leader from the current recommendation page. It posted the best standard-wattage projector result and is the first halogen bulb to try in a projector housing if you can find your bulb size.
BulbFacts testedCorrect bulb sizeprojector housing only
Best Premium Distance
The Morimoto XB Elite remains the premium performance benchmark from the current HID recommendations. It tested as one of the strongest 35W projector-focused HID kits and is the better fit when you want a complete, higher-quality conversion kit instead of a generic marketplace option.
A matching bulb size identifies fitment; it does not by itself prove optical compatibility or make a conversion a vehicle-specific recommendation. Use the HID upgrade path only with a projector housing; it is not a reflector-housing recommendation.
Best headlight upgrades
These products were physically tested by BulbFacts, but the tests were not performed in this exact vehicle unless a card explicitly says otherwise.
Optic: projector
High/Low Beam Combined: 9005 / HB3
Best direct replacement
Flosser Ultra +90%
High/Low Beam Combined 9005 / HB3
Estimated price$20-34
BulbFacts testedCorrect bulb size
Projector Backup Pick
The Flosser Ultra +90% remains the more practical projector alternative when Bosch availability is limited. It gives a solid measured projector bump and comes in several common bulb sizes.
BulbFacts testedCorrect bulb sizeprojector housing only
Best Premium Distance
The Morimoto XB Elite remains the premium performance benchmark from the current HID recommendations. It tested as one of the strongest 35W projector-focused HID kits and is the better fit when you want a complete, higher-quality conversion kit instead of a generic marketplace option.
A matching bulb size identifies fitment; it does not by itself prove optical compatibility or make a conversion a vehicle-specific recommendation. Use the HID upgrade path only with a projector housing; it is not a reflector-housing recommendation.
Other bulbs
Available exterior and interior lighting data for this model year.
Confirm the installed bulb, connector, housing, and factory system before ordering.
Position
Bulb or system
Fitment status
High/Low Beam CombinedWithout Optic: projector
9003 / H4
Bulb size confirmed
High/Low Beam CombinedOptic: projector
9005 / HB3
Bulb size confirmed
Other Kia Rio years
Each model year opens its own BulbFacts record. Bulb sizes and factory systems are not carried over from adjacent years.
Fitment note: Verify the installed bulb, connector, housing, and factory system before ordering. A bulb-size match is not automatically a conversion recommendation or proof of vehicle-specific testing.
