







🚗 Light Up Your Drive with Next-Level Brilliance & Style
Auxbeam B21 Series 3157 Switchback LED Bulbs deliver ultra-bright 600% enhanced illumination with dual-color functionality—cool white for DRL/parking and amber for turn signals. Featuring a built-in CANBUS resistor, these bulbs ensure error-free, hyper-flash-free operation on 99% of vehicles. The advanced 4-layer cooling system guarantees durability with up to 60,000 hours lifespan. Easy plug-and-play installation fits multiple socket types, making it the ultimate upgrade for safer, more stylish driving.





























| ASIN | B0BZ45WLRZ |
| Best Sellers Rank | #83,504 in Automotive ( See Top 100 in Automotive ) #118 in Automotive Turn Signal Bulbs |
| Brand | Auxbeam |
| Bulb Type | LED |
| Customer Reviews | 4.0 4.0 out of 5 stars (397) |
| Date First Available | 26 March 2023 |
| Exterior | Polished |
| Item Weight | 68 g |
| Item model number | AUXBEAM-B21-3157 |
| Manufacturer | Auxbeam |
| Manufacturer Part Number | B21-3457-AW |
| Model | 3157 Switchback LED Bulbs |
| OEM Part Number | 3047, 3047R, 3057, 3057A, 3057R, 3057NA, 3157, 3157A, 3157R, 3157K, 3157NA, 3157NAK, 3157NALL, 3357, 3457, 3457A, 4057, 4057R, 4157, 4157A, 4157R, 4114, 4144, T25 |
| Package Dimensions | 15.19 x 14.81 x 3.71 cm; 68 g |
| Position | Front |
| Special Features | Fits 99% Vehicles, Built-in Load Resistor, No Extra Resistor Needed, Anti Hyper Flash, 2023 Canbus Error Free, 2023 Latest IC Driver, Non-Polarity, Plug and Play, Easy Installation, Small Size Similar to OEM Bulbs, Fits CK Sockets / SRCK Sockets and US Standard Sockets, No Radio Interference, No Dark Spots, 360° Full Lighting, 28W/Bulb, High Power, 500% Brighter, High Visibility, Electroplating Pr… |
| Voltage | 12 Volts (DC) |
| Wattage | 28 watts |
R**Q
No hyperflash
Looks great
M**T
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.
A**I
My car is taurus, I have installed to my car, it is working fine dual function are working, it is really very nice, and recomended, I will observe until 2 week for the last review
J**Y
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.
D**D
2013 Silverado 2WD WT. I use these as front turn signals. two on each side. They work flawlessly with no hyper flash. They burn bright white until you call for flasher then they switch amber. Back to white on signal cancel. Awesome way to brighten up an old work truck.
H**N
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
Trustpilot
2 weeks ago
2 months ago