---
title: "turn signal bulb — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/turn-signal-bulb"
last_updated: "2026-07-09T23:00:54.224Z"
locale: en
meta:
  description: "turn signal bulb shows demand growing +170.5%, but a small market ($845K/yr) keeps it on the watch list."
  "og:description": "turn signal bulb shows demand growing +170.5%, but a small market ($845K/yr) keeps it on the watch list."
  "og:title": "turn signal bulb — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen"
---

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# **turn signal bulb**

**Worth a look****55/100 **

turn signal bulb shows demand growing +170.5%, but a small market ($845K/yr) keeps it on the watch list.

**Market/yr**

**$845K**

**Growth (1y)**

**+170.5%**

**Products**

**37**

**Brands**

**15**

was 21 a year ago

**Sellers**

**62**

**Price range**

**$4.96–$48.90**

**Returns**

**4.2%**

**Rating**

**4.5★**

**Worth a look**

Scored 55/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns

Market size

**31**

 ×0.30

Growth

**73**

 ×0.30

Competition

**66**

 ×0.20

Quality gap

**36**

 ×0.10

Returns

**66**

 ×0.10

## **Demand**

Weekly Amazon search volume, last 104 weeks — +170.5% year over year.

22K11KJul '24Nov '24Mar '25Jul '25Nov '25Mar '26

## **Seasonality**

Monthly demand index across the year — 1.00 is average.

JFMAMJJASOND

No pronounced peak months · busiest ÷ quietest = 1.3×

## **Competition**

- SYLVANIA32% - Kadiby23% - iBrightstar12% - SEALIGHT6% - AUXITO6% - iFunyLED4% - Other (9 brands)16%

The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them. 15 brands and 62 sellers compete here.

**Brands**

**15 **▼falling

was 21 a year ago

**Sellers**

**62**

**Top 5 brand share**

**79%**

#ProductBrandPriceRatingReviewsClick shareTrend

1
![Kadiby 2 Pack 3157 4157 Bulb Brake/Tail/Turn Signal Light/DRL(Daytime Running Lights) 3157ll 12V P27/7W 3047 3057 4057 4114 Trailer Bulbs Fit for F150 Focus Altima Silverado Jeep Cherokee](https://m.media-amazon.com/images/I/316k22sQb5L.jpg) [**Kadiby 2 Pack 3157 4157 Bulb Brake/Tail/Turn Signal Light/DRL(Daytime Running Lights) 3157ll 12V P27/7W 3047 3057 4057 4114 Trailer Bulbs Fit for F150 Focus Altima Silverado Jeep Cherokee**](https://www.amazon.com/dp/B0F3WXWRFV)

Kadiby$7.184.7★29015%▲rising

2
![SYLVANIA - 4157NA Long Life Miniature - Amber Bulb Ideal for Parking Side Marker and Turn Signal Applications (Contains 2 Bulbs)](https://m.media-amazon.com/images/I/41fhJ0bd-ML.jpg) [**SYLVANIA - 4157NA Long Life Miniature - Amber Bulb Ideal for Parking Side Marker and Turn Signal Applications (Contains 2 Bulbs)**](https://www.amazon.com/dp/B01FWODQ1S)

SYLVANIA$7.304.7★2,2588%▲rising

3
![SYLVANIA 3157 Long Life Miniature Bulb (Contains 10 Bulbs) 3157LL.TP](https://m.media-amazon.com/images/I/41ZNp6zPhaL.jpg) [**SYLVANIA 3157 Long Life Miniature Bulb (Contains 10 Bulbs) 3157LL.TP**](https://www.amazon.com/dp/B00BKXDXEQ)

SYLVANIA$9.884.8★1,8258%▲rising

4
![iBrightstar 3157 LED Bulb Amber 3157a LED Turn Signal Bulbs Super Bright for vehicle Blinker Lights and Turn Signal Lights 2 Pack](https://m.media-amazon.com/images/I/51-6GQ9k0wL.jpg) [**iBrightstar 3157 LED Bulb Amber 3157a LED Turn Signal Bulbs Super Bright for vehicle Blinker Lights and Turn Signal Lights 2 Pack**](https://www.amazon.com/dp/B06WD7Z4R7)

iBrightstar$15.654.4★69,0217%—flat

5
![Kadiby 12 Pack 3157 Bulb 4157 Bulbs T25 P27/7W 3057 3157LL 4057 3047 Brake/Tail/Turn Signal Auto Light Bulbs fit for Jeep Grand Cherokee Ford F-Series Ram Pickup Corolla Silverado](https://m.media-amazon.com/images/I/41sq7tn7AAL.jpg) [**Kadiby 12 Pack 3157 Bulb 4157 Bulbs T25 P27/7W 3057 3157LL 4057 3047 Brake/Tail/Turn Signal Auto Light Bulbs fit for Jeep Grand Cherokee Ford F-Series Ram Pickup Corolla Silverado**](https://www.amazon.com/dp/B0CR677W72)

Kadiby$9.194.6★1,2106%▲rising

6
![ecocstm 10 PCS 3157 Tail Light Bulb Miniature 4157 Brake Light Bulb Waterproof 3157 4157 Turn Signal Bulb Automotive Side Marker Tail Light Replacement for Truck SUV Car (White)](https://m.media-amazon.com/images/I/417oqKQ53-L.jpg) [**ecocstm 10 PCS 3157 Tail Light Bulb Miniature 4157 Brake Light Bulb Waterproof 3157 4157 Turn Signal Bulb Automotive Side Marker Tail Light Replacement for Truck SUV Car (White)**](https://www.amazon.com/dp/B0F4KCNHSC)

ecocstm$8.534.5★4904%▲rising

7
![SYLVANIA 3157 Long Life Miniature Bulb (Contains 2 Bulbs)](https://m.media-amazon.com/images/I/41vB+t4-6hL.jpg) [**SYLVANIA 3157 Long Life Miniature Bulb (Contains 2 Bulbs)**](https://www.amazon.com/dp/B01FWOD0X2)

SYLVANIA$7.074.7★2,9024%▼falling

8
![iBrightstar 3157 LED Bulb White 4157 3156 LED Reverse Light Bulbs Super Bright for Tail Brake Lights Backup Lights Turn Signal Lights 2 Pack](https://m.media-amazon.com/images/I/51rAnvpD6kL.jpg) [**iBrightstar 3157 LED Bulb White 4157 3156 LED Reverse Light Bulbs Super Bright for Tail Brake Lights Backup Lights Turn Signal Lights 2 Pack**](https://www.amazon.com/dp/B01MDUEBX1)

iBrightstar$12.844.4★69,0213%—flat

9
![HHZL T20 7440A WY21W Turn Signal Bulb Daytime Running Light Blinker Brake Light Bulbs 10PCS Monofilament Side Marker Lights Mini Taillight 7440 Bulb Replacement for Cars Trucks SUVs(Amber)](https://m.media-amazon.com/images/I/516vou2dqWL.jpg) [**HHZL T20 7440A WY21W Turn Signal Bulb Daytime Running Light Blinker Brake Light Bulbs 10PCS Monofilament Side Marker Lights Mini Taillight 7440 Bulb Replacement for Cars Trucks SUVs(Amber)**](https://www.amazon.com/dp/B0FMYFFV9Q)

HHZL$6.954.4★1403%▲rising

10

![SEALIGHT 3156 3157 LED Bulb Amber Turn Signal Lights with Extra Resistor HD Projector 3056 3457A 4057 4157 LED Light Bulb Replacement for Front Rear Turn Signal Blinker Parking Marker Light 2PCs](https://m.media-amazon.com/images/I/51YRXiXbLwL.jpg) [**SEALIGHT 3156 3157 LED Bulb Amber Turn Signal Lights with Extra Resistor HD Projector 3056 3457A 4057 4157 LED Light Bulb Replacement for Front Rear Turn Signal Blinker Parking Marker Light 2PCs**](https://www.amazon.com/dp/B0D2HRGVGD)

SEALIGHT$19.574.5★15,2143%—flat

11

![iFunyLED 4PCS 3157 LED Bulb Turn Signal Light 12V-24V Super Bright 3156 3056 3057 3047 4157 LED Replacement Light Kit Set for Car Tail Brake Turn Signal Blinker Lights - Amber Yellow](https://m.media-amazon.com/images/I/515Ckt0xSGL.jpg) [**iFunyLED 4PCS 3157 LED Bulb Turn Signal Light 12V-24V Super Bright 3156 3056 3057 3047 4157 LED Replacement Light Kit Set for Car Tail Brake Turn Signal Blinker Lights - Amber Yellow**](https://www.amazon.com/dp/B0CLXYT4MR)

iFunyLED$10.354.3★3,1492%▼falling

12

![SEALIGHT 7443 7440 LED Bulb Amber Turn Signal Lights T20 7441 7444 992 W21W LED Light Bulb with Projector Len and Need Extra Load Resistor Includes Additional Decoders Pack of 2](https://m.media-amazon.com/images/I/41SEzafALHL.jpg) [**SEALIGHT 7443 7440 LED Bulb Amber Turn Signal Lights T20 7441 7444 992 W21W LED Light Bulb with Projector Len and Need Extra Load Resistor Includes Additional Decoders Pack of 2**](https://www.amazon.com/dp/B0D2HRMDVK)

SEALIGHT$19.744.5★15,2142%—flat

13

![SYLVANIA - 7443 Long Life Miniature - Bulb Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)](https://m.media-amazon.com/images/I/41WmQMzNOaL.jpg) [**SYLVANIA - 7443 Long Life Miniature - Bulb Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)**](https://www.amazon.com/dp/B01FWOBX36)

SYLVANIA$7.364.7★7,6292%▼falling

14

![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://m.media-amazon.com/images/I/51Ofd7cQhWL.jpg) [**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://www.amazon.com/dp/B0CLP5Z8LN)

AUXITO$33.494.5★35,9332%▲rising

15

![SYLVANIA - 3457A Long Life Miniature - Amber Bulb Ideal for Park and Turn Lights (Contains 2 Bulbs)](https://m.media-amazon.com/images/I/41UUVyQTjzL.jpg) [**SYLVANIA - 3457A Long Life Miniature - Amber Bulb Ideal for Park and Turn Lights (Contains 2 Bulbs)**](https://www.amazon.com/dp/B06VSWKHDG)

SYLVANIA$7.274.6★1,1832%▼falling

**~~Showing 15 of 37 — show all ~~**

## **Product shelf**

All 37 tracked products in this niche.

Top sellersNewestTrending

[![Kadiby 2 Pack 3157 4157 Bulb Brake/Tail/Turn Signal Light/DRL(Daytime Running Lights) 3157ll 12V P27/7W 3047 3057 4057 4114 Trailer Bulbs Fit for F150 Focus Altima Silverado Jeep Cherokee](https://m.media-amazon.com/images/I/316k22sQb5L.jpg)**Kadiby 2 Pack 3157 4157 Bulb Brake/Tail/Turn Signal Light/DRL(Daytime Running Lights) 3157ll 12V P27/7W 3047 3057 4057 4114 Trailer Bulbs Fit for F150 Focus Altima Silverado Jeep Cherokee** Kadiby**$7.18**4.7★290 reviews](https://www.amazon.com/dp/B0F3WXWRFV) [![SYLVANIA - 4157NA Long Life Miniature - Amber Bulb Ideal for Parking Side Marker and Turn Signal Applications (Contains 2 Bulbs)](https://m.media-amazon.com/images/I/41fhJ0bd-ML.jpg)**SYLVANIA - 4157NA Long Life Miniature - Amber Bulb Ideal for Parking Side Marker and Turn Signal Applications (Contains 2 Bulbs)** SYLVANIA**$7.30**4.7★2,258 reviews](https://www.amazon.com/dp/B01FWODQ1S) [![SYLVANIA 3157 Long Life Miniature Bulb (Contains 10 Bulbs) 3157LL.TP](https://m.media-amazon.com/images/I/41ZNp6zPhaL.jpg)**SYLVANIA 3157 Long Life Miniature Bulb (Contains 10 Bulbs) 3157LL.TP** SYLVANIA**$9.88**4.8★1,825 reviews](https://www.amazon.com/dp/B00BKXDXEQ) [![iBrightstar 3157 LED Bulb Amber 3157a LED Turn Signal Bulbs Super Bright for vehicle Blinker Lights and Turn Signal Lights 2 Pack](https://m.media-amazon.com/images/I/51-6GQ9k0wL.jpg)**iBrightstar 3157 LED Bulb Amber 3157a LED Turn Signal Bulbs Super Bright for vehicle Blinker Lights and Turn Signal Lights 2 Pack** iBrightstar**$15.65**4.4★69,021 reviews](https://www.amazon.com/dp/B06WD7Z4R7) [![Kadiby 12 Pack 3157 Bulb 4157 Bulbs T25 P27/7W 3057 3157LL 4057 3047 Brake/Tail/Turn Signal Auto Light Bulbs fit for Jeep Grand Cherokee Ford F-Series Ram Pickup Corolla Silverado](https://m.media-amazon.com/images/I/41sq7tn7AAL.jpg)**Kadiby 12 Pack 3157 Bulb 4157 Bulbs T25 P27/7W 3057 3157LL 4057 3047 Brake/Tail/Turn Signal Auto Light Bulbs fit for Jeep Grand Cherokee Ford F-Series Ram Pickup Corolla Silverado** Kadiby**$9.19**4.6★1,210 reviews](https://www.amazon.com/dp/B0CR677W72) [![ecocstm 10 PCS 3157 Tail Light Bulb Miniature 4157 Brake Light Bulb Waterproof 3157 4157 Turn Signal Bulb Automotive Side Marker Tail Light Replacement for Truck SUV Car (White)](https://m.media-amazon.com/images/I/417oqKQ53-L.jpg)**ecocstm 10 PCS 3157 Tail Light Bulb Miniature 4157 Brake Light Bulb Waterproof 3157 4157 Turn Signal Bulb Automotive Side Marker Tail Light Replacement for Truck SUV Car (White)** ecocstm**$8.53**4.5★490 reviews](https://www.amazon.com/dp/B0F4KCNHSC) [![SYLVANIA 3157 Long Life Miniature Bulb (Contains 2 Bulbs)](https://m.media-amazon.com/images/I/41vB+t4-6hL.jpg)**SYLVANIA 3157 Long Life Miniature Bulb (Contains 2 Bulbs)** SYLVANIA**$7.07**4.7★2,902 reviews](https://www.amazon.com/dp/B01FWOD0X2) [![iBrightstar 3157 LED Bulb White 4157 3156 LED Reverse Light Bulbs Super Bright for Tail Brake Lights Backup Lights Turn Signal Lights 2 Pack](https://m.media-amazon.com/images/I/51rAnvpD6kL.jpg)**iBrightstar 3157 LED Bulb White 4157 3156 LED Reverse Light Bulbs Super Bright for Tail Brake Lights Backup Lights Turn Signal Lights 2 Pack** iBrightstar**$12.84**4.4★69,021 reviews](https://www.amazon.com/dp/B01MDUEBX1)

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Brightness/Shine/Glow**33%

*“Excellent lighting”*

**Size-Overall**15%

*“OEM fit”*

**Value For Money**11%

*“Best value”*

**Quality-Overall**11%

*“Good quality lights”*

**Advertised Vs Actual Product**7%

*“Works as intended”*

**Assembly/Installation**7%

*“Installed easy and came on time”*

**Efficiency**4%

*“It performs well in everyday driving conditions”*

**Color**2%

*“They white color looks amazing”*

**Durability**1%

*“Seems durable”*

**Ease Of Use**1%

*“Easy to use”*

### **What buyers complain about **

**Compatibility-Overall**19%

*“arent truck compatible”*

**Durability**16%

*“Didnt last”*

**Size-Overall**13%

*“Dont fit my truck”*

**Brightness/Shine/Glow**7%

*“Too bright”*

**Functionality-Overall**7%

*“Doesnt work”*

**Quality-Overall**7%

*“You would expect better quality fro a 14$ bulb”*

**Advertised Vs Actual Product**4%

*“Not as advertised”*

**Value For Money**4%

*“A bit disappointed considering the cost per bulb”*

**Color**2%

*“the Amber color is too light needs to be a more orange color in my opinion”*

**Socket/Port/Plug**1%

*“I ended up breaking my socket when removing it to send back”*

#### **Top return reasons**- Size-Overall49% - Compatibility-Overall20% - Functionality-Overall7% - Advertised Vs Actual Product6% - Defective Material/Parts4% - Color3% - Assembly/Installation2% - Socket/Port/Plug2% - Brightness/Shine/Glow2% - Value For Money2%