Auxbeam B21 Series 3157 Switchback LED Bulbs Built in Resistor CANBUS Error Free Anti Hyper Flash T25 3057 3457 4157 Bulbs White and Amber 600% Super Bright Turn Signal Light DRL Parking Light

This is a great item! I couldn't quite understand how i could get 3 separate functions where my replaced single filament bulb had been. But it does work! And what a difference in brightness!

I recently purchased the running light and turn signal light combo for my vehicle, and I must say, I am thoroughly impressed with its performance and functionality. This product truly offers the best of both worlds, providing a bright white running light for enhanced visibility during normal driving conditions, as well as an attention-grabbing amber turn signal light for when I need to indicate a lane change or a turn. One of the standout features of this product is its seamless transition between the white running light and the amber turn signal light. The transition is smooth and instantaneous, ensuring that other drivers on the road can easily recognize my intentions. This has significantly improved the safety aspect of my driving experience, as I feel more confident that my signals are clearly communicated to those around me. In terms of brightness, both the running light and turn signal light are exceptionally bright, making them highly visible during day and night. The white running light provides excellent illumination, enhancing my visibility to oncoming traffic and pedestrians. Meanwhile, the amber turn signal light grabs attention with its vibrant color, ensuring that my intentions are noticed even in busy traffic situations. The build quality of this product is also top-notch. It feels sturdy and durable, capable of withstanding various weather conditions and vibrations on the road. I appreciate the attention to detail in the design, as it seamlessly integrates into my vehicle's aesthetics without looking out of place. Overall, I am extremely satisfied with this running light and turn signal light combo. Its ability to switch between the white running light and the amber turn signal light is a game-changer for me. The brightness, durability, and ease of installation make it a fantastic choice for anyone looking to enhance their vehicle's lighting system. I highly recommend this product to fellow drivers who value safety and versatility on the road.

Very bright and super easy to install

Bright as heck and work great. My only complaint is the built in resistor doesn’t always work so my truck will say lamp out most the time and occasionally I get the fast blinker

Extremely bright and transitions from white to yellow smoothly Doesn’t feel cheap like some others I’ve bought Good price

They are solid bulbs but don’t seem to last. I’ve had two sets in the past a couple years and they eventually start to flicker and act weird. I would recommend another brand since other people that have left reviews seem to have longevity issues like me. They also don’t match the same light color headlights and fog lights I have. They are advertised to be the same “led” color as my headlights and fog lights but they are slightly different shade of “led”

My 2013 Ford Taurus Auxbeam switchback turning signals are insane! I've been asked what I am running in my headlight housing because of how Bright the signals are by Taurus owners & other drivers who want them. Evening/Night video fully shows how great they are. People will know your intentions and that you are making a lane change & if your vehicle is disabled the hazard lights are equally insanely Bright! FANTASTIC PRODUCT! I finally have a legit daytime running light without having to use my headlight. I was running Lasfit but it was insufficient white light to use as a daytime running light because when the sun hit the front of the vehicle you couldn't tell if light was on. Finally, Auxbeam is the Brightest Amber & White switchback I've come across. Any questions feel free to Ask me. 2013 ford Taurus SEL 3157 bulb replacement absolutely no Hyperflash & no dashboard codes. They work perfectly & are a Superior Product. Well built and units look nice in headlight housing. 10 star 🌟 product.

My only gripe, I assumed this had a built in resister for no hyper turn signal flashes. Annoying but still doable. Creates the LED look a wanted without changing the entire housing. A bit long but fits perfectly. Very easy to install and great for the money. Will see how long they last.