---
title: "Third Brake Light Bulb — $92K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/third-brake-light-bulb"
last_updated: "2026-08-09T09:52:49.051Z"
locale: en
meta:
description: "Niche score 37/100 · $92K/yr market · 87K searches/yr · $10.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 37/100 · $92K/yr market · 87K searches/yr · $10.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Third Brake Light Bulb — $92K/yr Amazon US Niche (2026) - Flapen"
---
# **third brake light bulb**
**Skip it**
A small market ($92K/yr) — this niche doesn't clear our bar today.
Market size 23Growth 24Conversion 87Competition 37Returns 24Price range 43Avg price 39Brand share 39Review moat 23Quality gap 40
**Conversion**
**Great****9.9%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Okay****$6.89–$21.16**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Avg price**
**Okay****$10.64**
avg listing price — sweet spot $15–$100
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-2.9%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****5.3%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$92K**
$92K/yr · 87K searches
**Review moat**
**Bad****6,883.26**
avg incumbent reviews — the moat a new listing must climb
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, third brake light bulb is a $92K/yr Amazon United States market (87K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 37/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **third brake light bulb market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **$85K–$106K**
- units × avg price
- **Conversion rate**
- **9.9%**
- **Avg BSR**
- **#123**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **63%**
- **Out of stock**
- **0.3%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **192 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▲rising
**Sellers**
**50**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 100%
**Open market**
**12%**
- SYLVANIA41% - ALKOREY15% - OSRAM12% - Kadiby8% - HHZL7% - AUXITO6% - Open — no brand owns it (6 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 96 weeks — -2.9% search growth over the last 90 days.
2K2KSpike '25 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/us/automotive/third-brake-light-bulb/trend)
## **Top third brake light bulb search terms**
- **7440 bulb**41K/yr-5.6%9.8% conv. - **7440 brake light bulb**20K/yr+3.7%10.7% conv. - **7440**12K/yr-9.3%6.2% conv. - **w21w bulb**7K/yr-6.2%6.4% conv. - **sylvania 7440**5K/yr+15.0%13.1% conv. - **7440 bulbs**3K/yr-4.3%3.9% conv. [**All search terms **](https://flapen.com/research/us/automotive/third-brake-light-bulb/search-terms)
## **Top third brake light bulb products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$5K10%$9K15%$14K20%$18K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**SYLVANIA - 7440 SilverStar Mini Bulb - Brighter and Whiter Light Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)**SYLVANIA**$11.62**4.5★490 rev](https://www.amazon.com/dp/B00499V06G) [2**ALKOREY-T20 W21W 7440 Bulb 2700K Warm White 12V 21W 7440 Replacement Bulbs for Back Up Reverse Lights Brake Tail Lights Car Miniature Lamps Ideal for Parking 2 Pack**ALKOREY**$6.98**4.4★38 rev](https://www.amazon.com/dp/B0FH5Y2CKP) [3**SYLVANIA - 7440 Long Life Miniature - Bulb Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)**SYLVANIA**$7.43**4.6★299 rev](https://www.amazon.com/dp/B01N2BKA8U) [4**SYLVANIA 7440 Long Life Miniature Bulb (Contains 2 Bulbs)**OSRAM**$7.62**4.6★308 rev](https://www.amazon.com/dp/B00318V5AC) [5**SYLVANIA - 7443 Long Life Miniature - Bulb Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)**SYLVANIA**$7.36**4.7★7,629 rev](https://www.amazon.com/dp/B01FWOBX36)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**iFunyLED 10 PCS 7440 Bulb Replacement Light Kit Set for Car Daytime Running Reverse Backup Parking Tail Brake Turn Signal Light Bulb**iFunyLED**$7.92**56 rev7mo ago](https://www.amazon.com/dp/B0G4CJ1NHM) [**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(White)**HHZL**$6.89**140 rev10mo ago](https://www.amazon.com/dp/B0FMYD536W) [**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)**HHZL**$6.95**140 rev10mo ago](https://www.amazon.com/dp/B0FMYFFV9Q) [**ALKOREY-T20 W21W 7440 Bulb 2700K Warm White 12V 21W 7440 Replacement Bulbs for Back Up Reverse Lights Brake Tail Lights Car Miniature Lamps Ideal for Parking 2 Pack**ALKOREY**$6.98**38 rev12mo ago](https://www.amazon.com/dp/B0FH5Y2CKP) [**ALKOREY-T20 W21W 7440 Turn Signal Bulbs 2100K Amber 12V 21W 7440NA Automotive Light Bulb Car Miniature Lamps Ideal for Parking 2 Pack**ALKOREY**$7.09**349 rev1y ago](https://www.amazon.com/dp/B0DZCP2Q1G)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**iFunyLED 10 PCS 7440 Bulb Replacement Light Kit Set for Car Daytime Running Reverse Backup Parking Tail Brake Turn Signal Light Bulb**iFunyLED**$7.92**4.7★**▲ 200%**](https://www.amazon.com/dp/B0G4CJ1NHM) [**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)**HHZL**$6.95**4.4★**▲ 91%**](https://www.amazon.com/dp/B0FMYFFV9Q) [**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(White)**HHZL**$6.89**4.4★**▲ 89%**](https://www.amazon.com/dp/B0FMYD536W) [**SYLVANIA - 7440 Long Life Miniature - Bulb Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)**SYLVANIA**$7.43**4.6★**▲ 41%**](https://www.amazon.com/dp/B01N2BKA8U) [**ALKOREY-T20 W21W 7440 Bulb 2700K Warm White 12V 21W 7440 Replacement Bulbs for Back Up Reverse Lights Brake Tail Lights Car Miniature Lamps Ideal for Parking 2 Pack**ALKOREY**$6.98**4.4★**▲ 38%**](https://www.amazon.com/dp/B0FH5Y2CKP)
**~~View all trending →~~**
## **What buyers say about third brake light bulb**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Brightness/Shine/Glow**31%
*“Super bright”*
**Size-Overall**16%
*“OEM fit”*
**Quality-Overall**12%
*“Quality looks solid”*
**Value For Money**11%
*“Good price”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Assembly/Installation**7%
*“Easy install”*
**Efficiency**2%
*“Works well”*
**Durability**2%
*“Durable”*
**Ease Of Use**1%
*“Easy and cost efficient”*
**Color**1%
*“Great color”*
### **What buyers complain about **
**Size-Overall**18%
*“which I believe are too small”*
**Compatibility-Overall**15%
*“The site says they are compatible and they are not”*
**Brightness/Shine/Glow**14%
*“Not as bright as expected”*
**Durability**13%
*“Short life”*
**Quality-Overall**10%
*“Quality control is lacking”*
**Color**2%
*“color is darker than OEM”*
**Assembly/Installation**2%
*“meaning I have to pay someone two times to install it”*
**Value For Money**2%
*“These bulbs cost me $1800”*
**Functionality-Overall**2%
*“Canbus decoder didnt help”*
**Defective Material/Parts**2%
*“The defective one only 50% of the LEDs would light up”*
### **Top return reasons **
**Size-Overall**59%
**Compatibility-Overall**18%
**Advertised Vs Actual Product**5%
**Functionality-Overall**4%
**Defective Material/Parts**3%
**Color**2%
**Brightness/Shine/Glow**2%
**Value For Money**2%
**Socket/Port/Plug**1%
**Assembly/Installation**1%
## **Common questions**
- **Is third brake light bulb profitable to sell on Amazon United States?**
- The niche generates $92K/yr across 19 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is -2.9%. Flapen's verdict: Skip it (37/100).
- **How competitive is the third brake light bulb niche?**
- 12 brands and 50 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in third brake light bulb?**
- Top complaints mined from reviews: Size-Overall, Compatibility-Overall, Brightness/Shine/Glow. The return rate is 5.3% — above our launch gate.
- **When does demand for third brake light bulb peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the third brake light bulb niche?**
- Listings span $6.89–$21.16; the average listing price is $10.64 (sweet spot $15–$100). The average incumbent carries 6,883 reviews — the moat a new listing must climb.
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