Best Fit
Premium-minded reflector-headlight owners who want proven output, a whiter but not overly blue color, strong lifespan testing, and a lifetime warranty from a known lighting brand.
Current Chart Snapshot
- 4.8 overall score, 1073 reflector low lux, and 1702 reflector high lux.
- 4.0 projector score, with 452 lux on projector low beam and 501 lux on projector high beam.
- 5450K color, 9150 lumens per kit, 38.2 watts per bulb, and CANBUS-friendly behavior.
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Current data note: This review was originally built around the version 2.0 test bench and has been cleaned into the current site format. The chart snapshot reflects the current LED chart entry for the GTR Lighting Ultra Series 2.
The Ultra Series 2 from GTR Lighting arrived with a lot of attention around it, and after some backorder delays, we finally got a set on the bench. We were initially a bit skeptical after seeing mixed outside impressions, but once we ran the bulbs through our own lab tests, the results were much stronger than expected.
Their output and lumen count are reminiscent of DDM Tuning's SaberPro 50W, but with a sleeker design, premium build quality, and a lifetime warranty that helps justify the higher price point. As with any LED headlight kit, performance still depends heavily on the housing, but the Ultra 2 showed a lot of strengths in the right application.
For drivers trying to balance cost, output, longevity, and warranty support, the Ultra Series 2 remains one of the more complete premium LED kits in the older BulbFacts test library.
Reflector Style Headlight Test Results
The Ultra Series 2 is at its best in reflector-style headlights, where it delivers a large distance increase with a controlled beam shape.
Reflector score
Solid reflector result for this product class. The 5.0 marker shows the reference point.
The Ultra Series 2 LEDs from GTR Lighting are an excellent choice for reflector-style headlights. In the current chart, they score 4.8 overall, with 1073 lux on low beam and 1702 lux on high beam.
Compared with the halogen reference, that is a major upgrade in useful distance and brightness. The original article described the low-beam result as roughly a 188% distance increase over standard halogen bulbs, and the current chart still shows this kit as a strong reflector performer.
The beam pattern is one of the reasons the Ultra 2 worked so well in this housing. GTR Lighting clearly put real development into the LED placement and collar design, and the result is a focused beam with less random scatter than many aftermarket LEDs.
We measured 275 lux of reflector glare in the current chart data. That is not the lowest glare result in the LED chart, but for this output level, it keeps the Ultra 2 in a usable premium-reflector category.
Projector Style Headlight Test Results
The Ultra 2 remains usable in projectors, but it does not dominate projector housings the way it does reflectors.
Projector score
Solid projector result for this product class. The 5.0 marker shows the reference point.
If your vehicle is equipped with halogen projectors, the Ultra Series 2 can still be a meaningful upgrade, but it is not the strongest projector-focused product in the LED chart.
In projector testing, it produced 452 lux on low beam and 501 lux on high beam, for a 4.0 projector score. Low beam nearly doubled the halogen reference in the original review context, but high-beam performance was less impressive.
This limitation is common with many LED conversions. The LED emitter layout can struggle to reach the high-beam portion of some projector bowls as effectively as a halogen filament, so raw bulb quality does not always translate directly into projector high-beam output.
For projector-heavy applications, newer products like the Hikari Wings or GTR Ultra Series 3 may be worth comparing. For reflector use, the Ultra Series 2 still makes a stronger argument.
Kelvin, Lumens, And Output Stability
The Ultra Series 2 has one of the nicer older LED color temperatures: white, clean, and less blue than many aftermarket kits.
GTR Lighting Ultra Series 2 Kelvin
GTR Lighting Ultra Series 2 lumens
We always appreciate finding an LED product that tests under 5500K. The Ultra Series 2 measured 5450K, which gives it a cleaner, more neutral white look than many cooler blue-leaning LED kits.
The beam has a very slight cool tint, but it is close to pure white and remains easy on the eyes. It also sits near the color of many OEM DRL systems, which can matter if you are trying to keep the front lighting visually consistent.
Measured output was 9150 lumens per kit, or about 4575 lumens per bulb. The original review noted that this was far beyond standard halogen output, and while lumens are not the full story, the Ultra 2's measured output backs up its premium positioning.
After warming up, power drop was relatively low at about 4.5% from the 2-minute to 30-minute measurement, earning an A rating for output stability.
LED Chips, Power, CANBUS, Temperature, And Noise
The Ultra 2 uses a higher-output fan-cooled design with an adjustable collar and external driver.
Measured draw
30-min temp
Fan noise
The LED chips used in these bulbs are manufactured by Elec-Tech, a diode maker whose chips have generally performed well in our testing. The original review noted that they delivered more consistency than cheaper LED alternatives we have seen.
Power draw measured 38.2 watts per bulb. That is higher than many efficient LED kits, but still lower than a standard 55W halogen bulb, which helps control heat while keeping output strong.
Current chart context lists the kit as CANBUS-friendly. As always, sensitive vehicles can still require decoders, but this is not a kit that behaved like a barebones budget LED in compatibility testing.
Thermal and noise results were also controlled for the output level: 119°F / 48°C running temperature and 61 dB fan noise. The adjustable collar allows precise clocking, which helps tune beam alignment for the housing.
Dimming, Lifespan, Warranty, Cost, And Final Thoughts
The Ultra Series 2's strongest value argument is the combination of premium output, long test life, and lifetime warranty coverage.
Coverage
The original facts list dimming support as Yes, with a 4V minimum on non-PWM systems. That matters because DRL and reduced-voltage systems vary widely. If your vehicle uses PWM-controlled DRL behavior, verify compatibility before relying on these as DRL bulbs.
Lifespan testing was one of the Ultra 2's strongest results. The bulbs maintained more than 75% output beyond 5000 hours, earning an S / Superior lifespan rating. Even after 7500 hours, the original review recorded about 70% output.
The Ultra 2 also carries a lifetime warranty, which remains rare in the LED market and helps offset the higher price. The current chart places estimated price around $250.
When it comes to LED products, finding the balance between cost and quality can be difficult. The Ultra 2 is not cheap, but it delivers the kind of output, build quality, lifespan, and warranty support that make it easier to justify for shoppers who want a premium kit.
It is not the newest GTR LED anymore, and projector buyers should compare newer options, but the Ultra Series 2 still earns respect as one of the more complete older premium LED reviews in the BulbFacts library.
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As always, our tests are independent. We decline paid or sponsored review outcomes, publish the lab details, and let the results decide whether a product belongs on a shortlist.
Full Test Details & Facts For GTR Lighting Ultra Series 2
Version 2.0 bench measurements, plus current chart context where newer chart fields are available.
Beam Output
- Current chart score
- 4.8
- Reflector low beam lux
- 1073 per bulb
- Reflector high beam lux
- 1702 per bulb
- Projector score
- 4.0
- Projector low beam lux hotspot
- 452 per bulb
- Projector high beam lux
- 501 per bulb
Beam Quality
- Low beam reflector pattern rating
- 3.0 stars in current chart
- Projector beam rating
- 3.0 stars
- Low beam reflector glare lux
- 275 in current chart
- Lumens drop, 2 to 30 minutes
- 4.5%
- Lifespan rating
- S / Superior, 5000+ hours
- Warranty
- Lifetime
Color And Hardware
- Lumens per kit
- 9150
- Lumens per bulb
- 4575
- Tested Kelvin
- 5450K
- Wattage
- 38.2 watts per bulb
- Running temperature
- 119°F / 48°C
- Noise
- 61 dB
Fitment And Compatibility
- Rotatable, H7
- Yes, 1° increments
- Bulb dimensions
- 35 mm, 35 mm, 44 mm (max width, base to rear, diode handle)
- External driver size
- 47 x 33 x 16 mm (W x L x D)
- LEDs per bulb
- 6 each, 12 total
- Direction
- Flat
- Driver type
- External, non-removable
- DRL / high-beam dimmable
- Yes, 4V minimum, non-PWM only
- CANBUS compatible
- CANBUS-friendly in current chart
- Radio frequency interference
- N/A
- Estimated price
- $250
Facts listed above are based on BulbFacts testing processes at the time of this review. See how we test for current procedures. Original article testing used a 25 ft distance test bench.