LED Bulbs

7440/7443: GTR Lighting Carbide 2.0 (Resistor-Free)


PART #: 2 x GTR.LED590

[ In Stock: 0 pieces ]

Product Details

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

Carbide Series OverviewThe 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

HR Tested: Here at Headlight Revolution, we spend a lot of time installing and testing the products you'll find for sale. We don't favor any particular brand, so our commitment to you is that 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!

Product Specs

  • Compatibility

  • Cross Compatibility: 7443, 7444, 7440

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

  • BLINKER CIRCUITS: Additional Resistors NOT Required!

  • Tech Specs

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

  • Power: 28.8w

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

  • Light Source: 3030 LED

Product Reviews

4.4 out of 5 stars

45 Reviews   Write a Review

5 out of 5 stars

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!!!

4 out of 5 stars

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.

5 out of 5 stars

Great looking LED and NO hyperflashing


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.

4 out of 5 stars

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.

5 out of 5 stars

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

5 out of 5 stars



Best LED with

5 out of 5 stars

Terrific Upgrade

James Thorleifson

These CANBUS LEDs are super easy to install, totally plug and play, and way brighter than stock!

4 out of 5 stars

performance is the upstanding. be thorough on the install

Andrew David

i bought these in switchback version as blinkers for my moriimoto hybrid headlights. the work as described and match the color temp of the headlights. just do one thing: make sure you test these bulbs. they only work one way. they can be installed flipped the wrong way and won't work which will temporarily freak you out. Both sides of the installed base have the same offset contacts on both sides which will lead you to believe that the bulbs can be installed either way. have your hazards on and install both until they light up.

5 out of 5 stars

The Best Available

Adam jentink

I bought both the Amber and Red for my 2013 Toyota 4runner SR5. Confirmed Standard sockets with my shop. Beautiful color and super bright. No hyper flash on rear turns w/o resistors. Reds get hot but not hot enough to warrant resistors.

1 out of 5 stars

Hyper flash Don't buy.

Margie's Mowing & Landscaping

I bought switchback white/ amber bulbs for the front and 4 red for the rear. I could have spent under $20 a pair on Amazon but chose these for my new 2020 duramax because they claimed to have no hyper flash because of built in resistors. I called to confirm this before purchasing and was even emailed with the bulbs recommended for my truck. Nearly $300 later and they don't work as promised.