Factory setup not specified in fitment source

2021 Nissan Altima Headlight Bulbs & Lighting Guide

Factory headlight performance and available bulb guidance for the 2021 Nissan Altima.

Low beam
H11
High beam
Factory halogen system
Factory setup
Factory setup not specified in fitment source
6.7/10BulbFacts OE Visibility Score
Factory performanceWeak Factory Lighting
2021 Nissan Altima factory headlights vehicle image

How the factory headlights perform

This vehicle has more than one documented factory system. Use the selector above to match the trim or package where available.

Weak Factory Lighting

Upgrade recommended if night driving is a priority; compare tested BulbFacts bulb options before buying.

Peak low-beam reach
274 ft
Compared with tested Cars, Sedans & Hatchbacks29th percentile
Compared with all tested vehicles23rd percentile
Peak high-beam reach
508 ft
Compared with tested Cars, Sedans & Hatchbacks57th percentile
Compared with all tested vehicles53rd percentile
Curve visibility
7.9 / 15
Glare control
10 / 10No recorded low-beam glare exceedance
High-beam assist
Yes
Curve-adaptive lighting
No

Performance varies by factory headlight system or trim. Confirm the installed configuration above.

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.

Factory setup not specified in fitment source

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.

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Other bulbs

Available exterior and interior lighting data for this model year.

Brake Light
7443Possible fitment — verify installed bulb
Cargo / Trunk Light
T10Possible fitment — verify installed bulb
Courtesy Light
T10Possible fitment — verify installed bulb
Dome Light
T10Possible fitment — verify installed bulb
Fog Light
H11Possible fitment — verify installed bulb
Glove Box Light
T10Possible fitment — verify installed bulb
License Plate Light
T10Possible fitment — verify installed bulb
Rear Side Marker
T10Possible fitment — verify installed bulb
Reverse Light
T15Possible fitment — verify installed bulb
Side Marker (Unqualified)
T10Possible fitment — verify installed bulb
Stepwell Light
T10Possible fitment — verify installed bulb
Turn Signal (Unqualified)
7443Possible fitment — verify installed bulb
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 BeamFactory setup not specified in fitment sourceH11Possible fitment — verify installed bulb

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.