third brake light bulb
Skip itA small market ($92K/yr) — this niche doesn't clear our bar today.
Conversion
Great9.9%search→purchase rate — share of searches ending in a sale
Price range
Okay$6.89–$21.16cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay82%top-5 brand share — brands hold most of the demand
Avg price
Okay$10.64avg listing price — sweet spot $15–$100
Competition
Okay63%top-5 click share — leaders hold, buyers still browse
Growth
Bad-2.9%90-day search growth — must beat 0% to launch
Returns
Bad5.3%return rate — above 5% kills the launch gate
Market size
Bad$92K$92K/yr · 87K searches
Review moat
Bad6,883.26avg incumbent reviews — the moat a new listing must climb
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
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.No pronounced peak months · busiest ÷ quietest = 1.2×
Top third brake light bulb search terms
- 7440 bulb41K/yr
- 7440 brake light bulb20K/yr
- 744012K/yr
- w21w bulb7K/yr
- sylvania 74405K/yr
- 7440 bulbs3K/yr
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.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SYLVANIA - 7440 SilverStar Mini Bulb - Brighter and Whiter Light Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)
SYLVANIA$11.624.5★490 rev
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$6.984.4★38 rev
SYLVANIA - 7440 Long Life Miniature - Bulb Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)
SYLVANIA$7.434.6★299 rev
SYLVANIA 7440 Long Life Miniature Bulb (Contains 2 Bulbs)
OSRAM$7.624.6★308 rev
SYLVANIA - 7443 Long Life Miniature - Bulb Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)
SYLVANIA$7.364.7★7,629 rev
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$7.9256 rev
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$6.89140 rev
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$6.95140 rev
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$6.9838 rev
ALKOREY-T20 W21W 7440 Turn Signal Bulbs 2100K Amber 12V 21W 7440NA Automotive Light Bulb Car Miniature Lamps Ideal for Parking 2 Pack
ALKOREY$7.09349 rev
Trending
90-day click momentumiFunyLED 10 PCS 7440 Bulb Replacement Light Kit Set for Car Daytime Running Reverse Backup Parking Tail Brake Turn Signal Light Bulb
iFunyLED$7.924.7★
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$6.954.4★
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$6.894.4★
SYLVANIA - 7440 Long Life Miniature - Bulb Ideal for Daytime Running Lights (DRL) and Back-Up/Reverse Lights (Contains 2 Bulbs)
SYLVANIA$7.434.6★
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$6.984.4★
What buyers say about third brake light bulb
What buyers praise and complain about, mined from review topics.What buyers love
“Super bright”
“OEM fit”
“Quality looks solid”
“Good price”
“As advertised”
“Easy install”
“Works well”
“Durable”
“Easy and cost efficient”
“Great color”
What buyers complain about
“which I believe are too small”
“The site says they are compatible and they are not”
“Not as bright as expected”
“Short life”
“Quality control is lacking”
“color is darker than OEM”
“meaning I have to pay someone two times to install it”
“These bulbs cost me $1800”
“Canbus decoder didnt help”
“The defective one only 50% of the LEDs would light up”
Top return reasons
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.