Lighting: halogen

2015 Lexus IS250 Headlight Bulbs & Lighting Guide

Choose the factory headlight system below to see the correct bulb and recommendation path for this 2015 Lexus IS250.

Low beam
H11
High beam
Factory halogen system
Factory setup
Lighting: halogen

Choose the factory system installed in this vehicle. Bulb sizes and recommendations change with that selection.

2015 Lexus IS250 representative vehicle 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.

Lighting: halogen

Low Beam: H11

Best direct replacement

OSRAM Night Breaker 200

Low Beam H11

BulbFacts testedCorrect bulb size
Best Standard Reflector Upgrade

The Night Breaker 200 is the top standard-wattage reflector recommendation at the time of review. Anything scoring higher in the reflector chart uses much higher wattage, while the NB200 keeps the simple drop-in halogen format.

General BulbFacts housing test
Read BulbFacts reviewCompare test resultsBuy at eBay

A matching bulb size identifies fitment; it does not by itself prove optical compatibility or make a conversion a vehicle-specific recommendation.

Support independent testing: BulbFacts may earn a commission from qualifying purchases through these links, at no extra cost to you. Affiliate relationships do not determine test results or recommendations.

Other bulbs

Available exterior and interior lighting data for this model year.

Cargo / Trunk Light
T10Likely fitment
Courtesy Light
T10Likely fitment
Dome Light
T10Likely fitment
Door Light
T10Likely fitment
Front Turn Signal
7443Likely fitment
Parking Light
7443Likely fitment
Reverse Light
T15Likely fitment
Stepwell Light
T10Likely fitment
Turn Signal (Unqualified)
7443Likely fitment
Technical details and sources

Fitment, factory-system research, and BulbFacts product tests remain separate evidence. A matching bulb size does not by itself make a conversion a vehicle-specific recommendation.

PositionBulb or systemEvidence status
Low BeamLighting: halogenH11Likely fitment
Low BeamLighting: HIDD4SLikely fitment
High/Low Beam CombinedTrim: Base; Lighting: HIDD4SLikely fitment

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.