SEALIGHT 3157 Switchback LED Bulbs, White/Amber, 2-Pack

Pack: SEALIGHT 3157 Switchback LED bulbs are listed for dual-function vehicle lamp sockets, with white output for daytime running or parking lights and amber for turn signals. The listing describes an external decoder that requires additional wiring, and says a load resistor or flasher relay may be needed to address hyperflash or blinking issues.

At a glance

Switchback output is described as white for DRL or parking lights and amber for turn signals.
The listing says turn signals flash amber-off rather than alternating amber and white.
A 34-chip arrangement is specified, with 13 white and 21 amber SMD chips.
The listing says an external decoder is included and requires additional wiring.

Price

$26.99Save 10%

Reference price: ~~$29.99~~

Price checked: Nov 13, 2026

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Often bought together

SEALIGHT 3156 3157 LED Bulb White Reverse Lights, 3056 3057 4057 4157 LED Light Bulb with Projector Replacement for Tail Light, Backup Light,Brake Parking, Automotive Back Up Light Bulbs, Pack of 2

$20.99

Pros and cons

Pros

Dual-color output is intended to serve turn-signal and parking or daytime-running functions in one dual-function socket.
The claimed two-bulb package includes the pair needed for a matching installation.

Technical specifications

20 specifications

Identity
Brand	SEALIGHT
Model	LED Bulb
Bulb type	LED
OEM equivalent part number	3157
Manufacturer part number	2346LTL16EHUS

Light and electrical
Color	Switchback(White/Amber)
Color temperature	6000 Kelvin
Brightness	2600 lm
Maximum light output	2600 lumens
Wattage	10 watts
Voltage	24 volts
Chip arrangement	34 high-power 3030 chipsets, including 13 SMD white + 21 SMD amber chips

Fit and construction
Fit type	Universal Fit
Listed position	Front
Housing	6063 aluminum alloy housing
Lens	HD glass lens
Operating life claim	60000 hours

Package and warranty
Number of items	2
Included components	2 x LED Bulb
Warranty description	2 Year Manufacturer

What to know before buying

Fit is limited to dual-function lamps combining parking or city-light and turn-signal functions. The listing says a 50w 6ohm load resistor or flasher relay may be needed to prevent hyperflash or a bulb that does not blink, and also describes an external decoder requiring additional wiring.

Listing details to confirm

Listing details are inconsistent or unconfirmed: the title identifies 3157, 3156, 3457 and 4157 compatibility while the feature text lists additional bulb types, and the details state 24 volts while the installation text broadly describes vehicle replacements. Confirm the exact socket and vehicle voltage before purchase. The listing also gives 10 watts overall but describes 5W for each bulb, so the wattage basis is unclear. Its brightness entries use both 2600 lm and 2600 lumens, without clarifying whether the claim is per bulb or for the pair.

What’s in the box

Included

2 LED bulbs

Who is it for?

A good fit for

Drivers replacing dual-function 3157-style lamps who want white parking or DRL output and amber turn signals, and can accommodate decoder wiring if needed.

Less suited to

Vehicles whose lamp socket does not combine parking or DRL and turn-signal functions, or buyers seeking a confirmed fit for a specific vehicle without checking its bulb and voltage requirements.

SEALIGHT 3157 Switchback LED Bulbs, White/Amber, 2-Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 6,568 ratings

5 stars74%74%
4 stars10%10%
3 stars6%6%
2 stars2%2%
1 star8%8%

Aggregate ratings lean positive, with most ratings in the five-star category, but a smaller one-star share means the overall score does not establish consistent results. No written customer feedback is supplied, so specific praise or complaints cannot be identified. For buyers, this rating pattern is only broad context and does not resolve the listing's fit, voltage, or wiring questions.

Frequently asked questions

What colors does this bulb use for each function?

The listing describes white for daytime running or parking lights and amber for turn signals. It says the signal pattern is amber-off rather than alternating amber and white.

Will it fit any vehicle with a 3157 bulb?

Not necessarily. The listing limits use to dual-function lamps that combine parking or city-light and turn-signal functions. Verify the vehicle's socket and voltage, especially because voltage and compatibility details in the listing are inconsistent.

Does installation require extra wiring or a resistor?

The listing says the external decoder requires additional wiring. It also says a 50w 6ohm load resistor or flasher relay may be needed if hyperflash occurs or the bulb does not blink.

How many bulbs are included?

The explicit included-components entry specifies 2 x LED Bulb.