GTR Lighting Ultra Series 3 LED Review

The Ultra Series 3 measured 5100K in our color test. That is right in the range we like to see for a headlight upgrade.

It looks clean and modern without getting overly blue. That matters more than people think. A very blue LED might look bright in a product photo, but it is not always better on wet pavement, in rain, or during long night drives. The Ultra 3 has a clean white output that still feels usable.

Raw lumen output was also strong. We measured 4788 lumens per bulb, or 9576 lumens per kit. That is a 202% increase over traditional halogen bulbs.

Output stability was good too. From cold startup to 30 minutes, total output dropped about 15.7%. That sounds like a lot until you look at the warmed-up numbers. From the 2-minute mark to the 30-minute mark, output only dropped 2.8%.

That is important because a lot of LED kits look great for the first minute and then fade once heat builds up. The Ultra 3 did not show that problem in our testing.

The Ultra Series 3 uses GTR Lighting's custom TST 7045 LED diodes with an internal driver design. Each bulb uses 3 LEDs per side, with 6 total LEDs per bulb, and the beam direction is flat.

Each bulb measured 43.1 watts. That puts it in the higher-output LED category, but not in a way that felt unstable or poorly controlled during testing.

The internal driver design also keeps installation cleaner since there is no separate external driver box to mount. That can make a difference in tighter headlight housings where extra wiring and modules are annoying to fit.

CANBUS behavior was good in our testing. We did not run into warning lights or flickering, and the kit is listed as CANBUS-friendly in the current chart. That does not mean it will be perfect in every vehicle, because some vehicles are more sensitive than others, but this is a much better starting point than lower-power LED kits that barely load the circuit.

Temperature measured around 130°F / 54°C during testing, which is controlled for this type of LED. Fan noise measured 58 dB. You can hear the fan on the bench if you are listening for it, but once installed in a normal headlight housing, it should not be noticeable.

The build quality also feels like what we expect from a higher-end GTR product. The machining, cooling design, wiring, and overall fit all feel more refined than the average Amazon LED kit. That does not automatically make it better, but in this case the test results match the hardware quality.

DRL and high-beam dimming behavior are still listed as N/A because we have not confirmed that across enough systems yet. Some vehicles use reduced-voltage or PWM-based daytime running light circuits, and LED compatibility can vary a lot depending on the vehicle.

Radio frequency interference is also listed as N/A on the current chart.

Lifespan is currently listed as N/A until full long-term runtime testing is complete. That said, our experience with GTR's higher-end Ultra-series products has been very positive, and the Ultra 3 does not show any early signs that would make us question the build quality. Between the cooling performance, stable output, and GTR's past performance in our testing, this is one of the kits we feel better about from a long-term quality standpoint.

Feedback from users and customers has also been strong. The Ultra-series kits have generally been well-liked by people who want a brighter, higher-quality LED upgrade and are willing to spend more for something that feels less disposable.

The Ultra Series 3 is expensive at around $259, but it does justify the price better than most high-end LED kits. You are getting very strong reflector output, very good projector performance, clean 5100K color, stable warmed-up output, CANBUS-friendly behavior, and a limited lifetime warranty.

That combination is why this kit is easy to recommend.

It is not the cheapest option, and it is not the lowest-glare LED we have ever tested. But the glare level is typical for a bright LED in a reflector housing, and in our testing it was not concerning. The output, beam control, and overall quality are strong enough that the Ultra 3 deserves to be treated as one of the best all-around LED kits currently on the chart.

If you want a high-output LED kit that performs well in both reflector and projector housings, the GTR Lighting Ultra Series 3 should be near the top of your list. For a budget build, there are cheaper options. For a serious upgrade, this is one of the first kits we would look at.