Bulbs are super bright which is what I was looking for to enhance safety. Had no issues installing them on a Toyota Highlander. Did not get any error codes. Got all the different ones to replace: turn signals (front and back), reverse (backup) and brake lights. As it is clearly stated in the description, you will experience hyper flashing for the turn signals but I was fine with that since I was replacing the relay for a LED one. After the relay was replaced for an adjustable one, the blinking is back to normal. Can't comment on durability as I just installed them a few days ago but I am extremely happy with them.

These AUXITO 912/921 LED backup bulbs are a game-changer! The difference between these and the stock halogen bulbs is truly night and day. They claim 400% brighter, and I believe it – the 42-SMD chips put out an incredible amount of clean, 6000K white light. Reversing at night is so much safer now, as my backup camera view is significantly clearer and brighter, illuminating everything behind me perfectly.Installation was incredibly easy. They are non-polarity, so I didn't have to worry about which way they went in, and they fit perfectly as a direct replacement for the old T15/921 bulbs. No flickering, no errors, just instant, brilliant light.If you're looking to seriously upgrade your reverse lights for better visibility and safety, these AUXITO bulbs are an excellent choice. Fantastic brightness, easy installation, and a crisp modern look. Highly recommended!

I installed these LEDs in my 2009 Mercedes CLK 350, and they worked flawlessly right out of the box as reverse lights. If you’ve ever upgraded bulbs on a Mercedes, you know how picky the CANBUS system can be, but these bulbs didn’t trip any errors or warning lights at all.The brightness is a huge improvement over stock, with a clean white light that gives the car a more modern look. Installation was quick and easy, and the build quality of the bulbs feels solid and durable. They've been running for a few weeks now with no flickering, dimming, or heat issues.If you own a CLK or any Mercedes from this era and are worried about compatibility or dashboard errors, don’t be, these bulbs are truly CANBUS-compatible and work perfectly. Highly recommend!

The left pictured blinker light is this new bulb, while the one on the right is the old original bulb before changing. You can clearly see the brighter difference. It fit without any issue even though it is longer than the original bulb. I hope it lasts longer as expected.

Best ones I have ever bought so far, I have bought different ones for other vehicles I had and they wasn't as bright as these, going to buy more for my other vehicle

Very bright but cause fast blink

1st - they were the right fit for the vehicle. 2nd - holly cow are they bright. I do hope they last a long time. I order the red tail-light option to complete the transformation. I have not driven my vehicle nor checked the brightness yet.

I deliver newspapers for a living, and as part of the job I am often backing into/out of driveways and executing tight turn-around maneuvers in the dark. Being able to see is "kinda" important. While the factory incandescent bulbs of my '99 Jeep Cherokee were good, I was searching for something better. Being that my vehicle is wired using the "CK Method," I needed to make sure any LED replacements were compatible with this wiring system. (LED bulbs that are incompatible will blow fuses immediately, so it's definitely something buyers need to be aware of.)These Auxito LED bulbs ARE compatible with both "Standard" and "CK" wiring, and are designed to eliminate the need to check proper polarity - in other words, these bulbs will work no matter which way you install them into your sockets, on the first try. It takes more circuit design know-how and electronic components to achieve this, so I appreciate the extra thought and production costs invested - Auxito could have taken the cheapest route to maximize profits, but they didn't.According to what I've been able to glean from the item description, these bulbs are not compatible with vehicles that use CANBUS. I don't have any vehicles that use CANBUS communications, so I cannot verify - however, there is a CANBUS-compatible version from Auxito; if you have a vehicle that uses CANBUS, I would highly suggest you choose that bulb instead. (Unsure if your vehicle uses CANBUS to determine if a bulb is out? You might want to consult a repair shop, preferably a dealer that sells your car's make because their Service department should know that.)I've had them installed in my Jeep for several months now, and the difference is almost mind-blowing! Bright, crisp "pure" white (not that bluish-tinted "cooler" color temperature) that illuminates everything behind me very well. I don't see any odd "hot" or "cold" spots in the light output, as is common with some other brands. I have seen no drop in total light output over time (LEDs get dimmer if they're being "pushed" too close to the "limit"), and believe me when I say my backup lights easily see 10x the use an average driver will subject them to.I have not installed these bulbs in a place where they see constant operation (parking lamp/turn signal or tail/brake) but I feel pretty confident in saying they'd be a great upgrade for those applications as well.I'm quite impressed with these bulbs, and I would highly recommend them to anyone looking for brighter illumination when reversing - or, if you're converting your car to all-LED for the aesthetic and want an amazing bulb for your reverse lights.In fact, I'm so impressed with these bulbs, I'm about to add another two-pack to my cart to replace incandescent reverse lights in my mother's '07 Grand Caravan, a vehicle that SERIOUSLY needs brighter reverse lights due to the factory window tint.

Tinted rear window always gave me a bit of a hard time seeing where I was backing up. Tried these, was skeptical... but man! WOW! Legit 50% improvement on the amount of light over OEM bulbs. Very happy! Been using them now for 6+months... still solid!

Best ever back up reverse light LED

Me gusto la publicidad, y espere, el producto sea de calidad y no, me provoca fallo y me indica la computadora qué hay falla.NO LO RECOMIENDO.

MEJORO MUCHO LA VISIBILIDAD AL USAR LA REVERSA, TANTO EN LA CAMARA ASI COMO EN EL USO DE LOS ESPEJOS RETROVISORES, CUMPLIO CON LAS ESPECTATIVAS QUE ESPERABA

Good brightness but one bulb after 2 month not working any more