TUINCYN7440 7440NA LED Bulb CANBUS Free Amber Yellow WY21W T20 Turn Signals Light Built-in High Decoding Rate Load Resistor 54pcs LED Cree Chip Anti Hyper Flash Error Code Blinkers(Pack of 2)

Best led ever

So far they are working good. No more hyper-flash on my turn signals and bulbs are bright. Ive only been using a couple of weeks so dont know how long they will last but so far they work as advertised.

Although the light works great, even with the built in Canbus, it does not work on my 2023 Tahoe. I get errors on my dash saying the bulb is not functioning even though it is.

When it comes to side indicators, the brighter the better as they can say that they did not see the blinkers. These are very bright, and a good replacement for the OEM halogens as they don't hyper flash as most led to do. These will hyper flash once they get really hot, which for me happens after three minutes due to the year around 30c temperature. The finish is nice and the installation is quite simple as you are replacing a bulb for another. A great improvement that one should do, as it increases visibility and saftey.

This product is great I used it to replace the rear turn signal for my 2022 Suburban Premier. It is incredible how Chevrolet still uses incandescent bulbs for this expensive SUV. This product made my SUV look more modern. The lights are bright and they do not produce any error message in the display of the SUV. Recommended for Tahoe and Suburban 2021+ owners.

UPDATED Review as of June 23, 2023: These are still holding up. It survived a -2 degree fahrenheit cold weather and also a 113 degree fahrenheit heat. However, I did noticed that the lights, when the weather is hot (example: 85 degrees or higher) they will hyperflash within about 30 or 45 seconds, even shorter when it’s hotter outside like 95 degrees weather or hotter. However, during cooler weather, 60 degrees or lower, they will only hyperflash after 2 minutes. Other than that, they’re still holding up really, really well!Original review from FEBRUARY 25, 2022: Alright, I finally bought these ones with built in decoding chip since the regular ones I had (different brand) hyper-flashed every other day until one of them finally burned out, literally. They are compatible with my 4th Gen 4runner (2007 version) and these are used for my DRL as well as turn signals. These are very good so far and have not caused any hyper-flashing at all. I also like the fact that it has holes for heat dissipation because these things can get quite hot, and the holes helped tremendously after inspection, so I hope I won't have a burned out problem like my previous one which gets hot after usage. I am unsure about it's water resistance efficacy, and I'm no IP-rating expert since these doesn't have an IP-rating, but I think they might be fine as the LED chips are exposed and not encased, so water (especially condensation) doesn't get trapped, but knock on wood. I'll update more later on, but I'm hoping that these lasts me at least 8 - 12 months (or even longer!)