# AUXITO 3157/4157 Switchback LED Turn Signal Bulbs, White/Amber, 2-Pack

Pack: AUXITO 3157/4157 switchback LED bulbs provide white light for parking or daytime running lights and amber for turn signals, with an amber-off flash pattern claimed by the listing. This two-bulb set is intended for dual-function sockets, but some vehicles may need a load resistor or flasher relay to address hyperflash or blinking issues.

- [Original product page](https://best-deals.pro/product/auxito-3157-4157-switchback-led-turn-signal-bulbs)
- [View offer](https://best-deals.pro/visit/auxito-3157-4157-switchback-led-turn-signal-bulbs)
- Market: US
- Language: en-US
- Currency: USD
- Brand: AUXITO
- Model: 3157/4157
- Category: Cars & Motorcycles > Auto Parts & Maintenance > Vehicle Lighting & Signals
- Price: 22.99 USD
- Previous price: 26.99 USD
- Discount: 15%
- Price checked: 2026-11-11T09:03:28.801Z
- Rating: 4.4 / 5
- Reviews: 17798

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- White output is listed for parking or daytime running lights, amber is listed for turn signals.
- The claimed turn-signal sequence is amber-off-amber-off rather than alternating amber and white.
- The listing describes plug-and-play, no-polarity installation and compatibility with standard and CK sockets.

## Pros

- Dual-color output assigns white to parking/DRL use and amber to signaling in a single bulb.
- The stated fit list includes multiple 3157-family socket types, including standard and CK sockets.

## Specifications

### Identity
- Brand: AUXITO
- Model: 3157/4157
### Light and electrical
- Light source: LED
- Color: Amber/White Swithcback
- Color temperature: 6000 Kelvin
- Brightness: 700% Improved lm
- Wattage: 50 watts
### Fit and use
- Fit type: Vehicle Specific Fit
- Intended position: Front
- OEM equivalent part number: 3157/4157na
### Dimensions and installation
- Weight listed: 1.76 ounces
- Operating life: 50000 hours
### Package and support
- Package quantity: 2
- Manufacturer part number: 3157-16K-Black-WY2
- Warranty description: 12 Months from Purchase

## Before you buy

- This bulb is specified for dual-function lights combining parking/city and turn-signal functions. The listing says some vehicles may need a 50W 6-ohm load resistor or upgraded flasher relay to address hyperflash or non-blinking, although it claims resistors are included, the explicit included-components entry lists only the bulbs, so verify the selected listing's contents. Confirm the vehicle's socket and lighting configuration before purchase. The listing's voltage details differ: one field states 12 volts\_of\_direct\_current while feature text claims a 9V–18V DC input range, treat the operating range as unconfirmed. Its 50 watts and 700% Improved lm brightness entries are not further explained, so their measurement basis is unclear.

## In the box

- 2 switchback LED turn signal bulbs (Included)
- Load resistors (Check selected pack): Feature text claims resistors are included if needed, but the explicit included-components entry lists only the bulbs, check the selected listing.

## A good fit for

- Drivers replacing a dual-function 3157-family bulb for parking/DRL and turn-signal use, after confirming vehicle fit.
- Buyers seeking a switchback bulb whose listed signal pattern is amber-off rather than amber-white.

## Less suited to

- Vehicles with separate bulbs for parking lights and turn signals, based on the stated dual-function-only limitation.
- Buyers who need confirmed vehicle compatibility or assured hyperflash-free operation without checking their vehicle and any resistor or relay requirements.

## Customer feedback

The supplied aggregate rating is 4.4 out of 5 from 17,798 global ratings. Ratings alone do not reveal why customers scored the bulbs as they did, so they cannot confirm vehicle fit, brightness, or performance with a particular flasher system.

## Frequently asked questions

### What color does the bulb use for each function?
The listing specifies white for parking or daytime running lights and amber for turn signals, with an amber-off-amber-off signal pattern.
### Will these bulbs fit any vehicle with a 3157 socket?
The listing names several compatible socket types, including standard and CK sockets, but also says the bulbs are for dual-function lights. Confirm your vehicle's socket and lighting arrangement.
### Could a resistor or flasher relay be needed?
Yes. The listing says some vehicles may need a 50W 6-ohm load resistor or upgraded flasher relay to address hyperflash or non-blinking. It claims resistors are included, but the explicit included-components field names only the bulbs.

## Alternative options

- [AUXITO Latest CANBUS 3157 Switchback LED Bulbs 3057 3457 4157 Dual Color Amber/White Anti Hyper Flash Built-in Resistor Error Free Turn Signal Lights and DRL/Parking Lights, Pack of 2](https://best-deals.pro/visit/auxito-3157-4157-switchback-led-turn-signal-bulbs)
- [3157 3057 3357 4157 Turn Signal White Yellow Amber Switchback Led Light Bulbs 22 SMD with Projector, for Standard Socket, Not CK, Pair of 2](https://best-deals.pro/visit/auxito-3157-4157-switchback-led-turn-signal-bulbs)
- [SEALIGHT 3157 Switchback LED, 2025 Latest 3157 LED Bulb Dual Color Amber Yellow/White 3156 3457 4157 T25 Lamps with HD Len & Extra Resistor for Turn Signal/DRL/Parking Lights, 34-SMD Chipset, 2PCs](https://best-deals.pro/visit/auxito-3157-4157-switchback-led-turn-signal-bulbs)
- [Auxbeam B21 Series 3157 Switchback LED Bulbs Built in Resistor Error Free \| White and Amber, Anti Hyper Flash, 600% Bright, T25 3057 3457 4157 Bulbs with Fan, Turn Signal Light Light DRL Parking Light](https://best-deals.pro/visit/auxito-3157-4157-switchback-led-turn-signal-bulbs)
- [AUXLIGHT 3157 3057 4157 3155 3457 Switchback LED Bulbs 16SMD Chipsets Parking Lights/Daytime Running Lights/DRL and Turn Signal Lights with Projector replacement, White/Amber \(Pack of 2\)](https://best-deals.pro/visit/auxito-3157-4157-switchback-led-turn-signal-bulbs)
- [Auxbeam 2026 B1B Series 3157 Switchback LED Bulbs with Extra Resistors \| Anti hyper flash, 400% brighter, t25 3057 3457 4157 bulbs, white and amber, dual color, drl turn signal lights parking lights](https://best-deals.pro/visit/auxito-3157-4157-switchback-led-turn-signal-bulbs)

## Images

![AUXITO 3157/4157 Switchback LED Turn Signal Bulbs, White/Amber, 2-Pack — 1](https://best-deals.pro/i/PPELsShvioCgKpqPvX0uZ751wC1dDXGGTcH8mSLehyFtAA8ZkEhkIdfU9saxJb6BptIpbH1-ZxwH2Q1hO-CPXNPBemD2yn-Gk1Zuawln4PicIxvnBeHLV_zw.jpg)

![AUXITO 3157/4157 Switchback LED Turn Signal Bulbs, White/Amber, 2-Pack — 2](https://best-deals.pro/i/cpwk7MMToXkLL4d9_vEx6sidQaRspxBDJQe1l3Lqbforf7LCtagQKybuYQBtrOZDwajWPJAlkJNnF7Cw9TyF1Qav7TvFfnrqevvkU5gWvpRJAqHllGkuQC--.jpg)

![AUXITO 3157/4157 Switchback LED Turn Signal Bulbs, White/Amber, 2-Pack — 3](https://best-deals.pro/i/EdAaW1DeCU_ZMD20PfSqM9uvCQBT8NXorfqOYG6aXSkFN9W_ganQqc8pmiiLkstVoIE4blzq4f8BimmsnnIBoxZu4p6Pp8IjGWKlZf6Re6jxgyU3BT22UxIb.jpg)

![AUXITO 3157/4157 Switchback LED Turn Signal Bulbs, White/Amber, 2-Pack — 4](https://best-deals.pro/i/gKhPAc6o7rInlCvSJiTfe-IiiSspQiNvAqGNv4myWWFTrtJ2FeJpzia8NV4eNLncHZx_v91yAWxI9N5zP1LpRsNegy0EBezLUnNy1tS1NiUL8Rhpqu7FEpNj.jpg)

![AUXITO 3157/4157 Switchback LED Turn Signal Bulbs, White/Amber, 2-Pack — 5](https://best-deals.pro/i/Y8xCI_Mml4M82SZPu0UgrcITdF-N8ox-pNBO3MRtSRyI_n3CopWNc7EEWkZEjtxWoIj_ZQGFBO_qRO2Wj3OAjqqKglagswc34ne9dieQdgxqsjiLscxFnFlc.jpg)

![AUXITO 3157/4157 Switchback LED Turn Signal Bulbs, White/Amber, 2-Pack — 6](https://best-deals.pro/i/a0s-qeNO8TSopcq4VZZpSWwZEN_tIvnXlrTdGfxLbKuQL8kNlirSerPHg66QoNrh0MwgUp5-MMexzOdEgyTMSCI-FkioEtu6ax0unMtlBdh_ir8G1Wm3Km8T.jpg)

![AUXITO 3157/4157 Switchback LED Turn Signal Bulbs, White/Amber, 2-Pack — 7](https://best-deals.pro/i/FoGKCKmRl85TGGO0-Qt6iWzVmyqKlEFoQWFE3ceRzDGQGCFJWBQebrei9s4w3yWlwlO03bCvJVAYcYY_09EGU-3-9JsE2T55f67TDPEphbV0wKnyMxQB2EQF.jpg)