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7440/7443: Carbide 2.0 (Resistor-Free) LED Bulbs

63 Reviews

Brand: GTR Lighting




PART #: 2 x GTR.LED590

Easy Return


The GTR Lighting Carbide Series 2.0 LEDs stand out as the brightest plug-and-play replacement bulbs globally, focusing on delivering maximum light output for enhanced visibility. With a remarkable 2,400 Lumens per pair, their innovative design and efficient cooling system ensure optimal performance. These LEDs offer improved safety, integrating seamlessly with CANBUS systems, eliminating the need for resistors, wiring modifications, and addressing issues like 'bulb-out' warnings, flickering, and hyper flash. The built-in CANBUS-integration circuit accommodates the majority of vehicles, rendering installation hassle-free. Moreover, the Carbide Series 2.0 incorporates the Intelligent Temperature Control System (ITCS), featuring strategic vents and heat sink fins to prevent overheating. Compatible with 7440 series bulbs, including 7443, 7444, 7505, and T20, these LEDs represent a superior choice in brightness, convenience, and reliability.


  • Bright Illumination: Carbide 2.0 LEDs emit 2,400 Lumens for excellent visibility.
  • CANBUS Integration: Hassle-free installation without resistors or flickering.
  • Temperature Control: Vents and heat sink fins prevent overheating.
  • Vibrant Colors: Custom LED chips enhance style and performance.
  • Wide Compatibility: Fits 7440 series models like 7443, 7444, 7505, T20.


  • LED Bulbs: 2x (One Pair) 7443 Carbide Canbus 2.0 LED Bulbs


This GTR Lighting product includes a 2 Year limited warranty, serviced and supported by the GTR LIghting team in Atlanta, GA. This warranty does not cover modifications, alterations, or misuse. For additional information, contact us.


  • Intensity: 1,600-1,860lm (Raw; Each)

  • Power: 28.8w

  • Dimensions: 0.79in / 20mm DIA, 2.3in / 59mm L



  • Cross Compatibility: 7443, 7444, 7440

  • FITMENT: Signal, Marker, Brake, Tail, Reverse Lights

  • BLINKER CIRCUITS: Additional Resistors NOT Required!

NOTE: Do you have CK style wiring or Standard? Click Here to find out which bulbs you need.

Carbide Series Overview - The Carbide Series 2.0 7440/7443 from GTR Lighting is a remarkable bump in performance from what was already a good light in version 1.0. These LED Lights are focused on one thing, getting the most light onto your target as physics will allow for. Here at Headlight Revolution we personally love the visual appeal of the lights even when they're off. GTR poured some real effort into designing an attractive package and it shows. What might amaze you is how much technology is packed inside though.

CANbus Compatible - Canbus vehicles can wreck a brilliant lighting upgrade in no time. GTR doesn't want its customers experiencing that pain and neither do we. That's why we love that the Carbide Series 2.0 has Canbus integration built-in. No more resistors, no more having to hack your wiring to ensure you avoid 'bulb-out' warnings, no more flicker, and no more hyper flash. It's all a thing of the past with the Carbide 2.0.

Redundencey: The Carbide Series 2.0 features something called the Intelligent Temperature Control System or ITCS. It features layers of design that keep this bulb cool on the hottest of days. First, the aluminum casting itself evacuates heat at a rapid pace. Add to it internal heat sink fins that further cool the light. Finally, if for some reason the light should experience unexpectedly high temperatures a thermistor circuit is constantly monitoring in case the power needs to be reduced. There's no way around it, GTR wants this to be the last set of bulbs you ever buy.

What's Included:
Two CANBUS Friendly LED Bulb Replacements (Fixes rapid flash, hyper flash and bulb out errors)

NOTE: Do you have CK style wiring or Standard? These bulbs will only work with standard style wiring. Click Here to find out which bulbs you need.

These LED bulbs will replace any T20 based 7440/7443 series bulb, here is the bulb cross reference guide for this product: 3057, 7443, 3457, 4057, 4157 & T20

we'll deliver the best product for your application, period. To see all of the compatible lighting upgrades for your vehicle, use the "buyers guide" on our homepage! Be sure to check out the HR YouTube channel for hundreds of helpful install and review videos!


22 gmc sIERRA 1500 ELEVATION

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Super bright , love these bulbs and definitely will purchase from here from now on.


2016 Ram 1500 Reverse Lights

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These lights are extremely bright and have nice light distribution. The other key factor is the canbus compatibility which I haven’t had any codes since installing these bulbs. Finally the biggest reason I liked them so much is the fact you don’t have to leave your factory plug dangle outside the housing if you chose one of the other replacement options. These bulbs fit in your factory plug and your factory plug is installed back in your taillight (at least for my 2016 Ram that was the case). Excellent products!!


Very Bright and Perfect Color

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One of my biggest concerns before buying these was that it wouldn't be able to replicate the natural amber color of the stock bulbs. However, the color is even better with these LEDs! They are the deepest amber I have ever seen and are insanely bright. They really compliment any white or blue led light super well. I know they are a bit pricey, but to have a bulb that is as bright and vibrant as this that will last forever is certainly worth the money!


2021 Jeep Gladiator

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Installed these on my gladiator and they look awesome. I used the 7440/7443 CK: GTR Carbide Canbus 2.0 LED (amber) for the turn signals and the 7440/7443 GTR Carbide Canbus 2.0 LED (white) for the drls. They do need to be installed in the proper orientation. To double check this, I flipped the bulbs around and they didn’t work properly, I just happened to install them the correct way first try. The picture shows the LEDs installed on the passenger side and the stock halogens on the driver side.


21' GMC Sierra Elevation

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These GTR amber LED's really are brighter than my headlights! No hyperflash and took about two minutes to install both. Fast shipping and the real world example on YouTube made this a great purchase 💡👌🏼


2017 Ford F-350 Looking Good!


Tech support/customer service was great in trying to figure problem (CK GTR LIGHTING CARBIDE LED switchback) why lights were not working and sent out another set (Non-CK) to see if it would work. And we have light! The Non-CK worked, problem solved and love the way they look in 2017 Ford F-350. A must buy!!! Thank you!!!


non-CK confusion


Using the 7440/7443 Carbide Series 2.0 NON-CK amber (GTR.LED590) on my 2021 Tundra (with OEM LED headlights), the front turn signals are bright and no resistors are needed. The LEDs are polarity sensitive, and I had to reinstall them 180 degrees for proper function. I initially ordered CK bulbs with a July 4th discount, because the website said "2006-2019 Toyota Tundra front turn signals: 4157CK," but the CK's didn't work. HR needs to update its website. Customer service had me exchange the CK's, Great bulbs. BTW I used 3156/3157 GTR Carbide Series 2 red (GTR.LED581) for the rear stop/tail lights.


Great looking LED and NO hyperflashing

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Installed these on my 2017 F150 with the Morimoto Hybrid headlights and they look amazing. I believe these have to be installed in the right orientation, when I plugged in the drivers side it worked perfect, but not on the passenger side. I unplugged it and rotated and then it worked perfect. No fast signal on my cluster or hyperflashing so I am happy.


these lights are great love not having to wire in any resistors.


these lights work great and are BRIGHT when the turn signal is on.


Vivid upgrade


Purchased the 7443 amber (non CK) for 2016.5 Mazda CX-5 Touring and I have to admit I was skeptical. They worked right out of the package with NO hyperflashing. I also purchased the 1157 switchbacks but I am having an issue with those. working on a solution

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