921 Bulb
FailThe average product has 4,840 reviews to catch up to, so 921 Bulb is a Fail.
- Flapen Score
- 43 / 100Ranks 5,360 of 7,287 Automotive niches · −6 vs the category median of 4943
- Market size
- $147K/yr107K searches / yr
- 90-day growth
- +11.2%search demand this quarter
- Competition
- 60%top-5 click share · 16 brands · 56 sellers
Flapen Score
921 Bulb against its category
The dotted line is the Automotive average. Past it, 921 Bulb is stronger. Inside it, weaker.
Market
The 921 Bulb market on Amazon at a glance
Shoppers on Amazon United States searched for 921 Bulb 107K times last year and spent an estimated $147K. The top 5 brands take 83% of clicks. Flapen scores it 43 out of 100, a Fail.
01 · Demand
An estimated 12.8% of those searches ended in a purchase.
Shoppers searched for this 107K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 12.8% of those searches ended in a purchase. Searches in the last 90 days moved +11.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $147K a year.
- Searches, last 12 months
- 107K
- Growth, 90 days vs prior 90
- +11.2%
- Conversion, latest week
- 12.8%
- Market size, estimated
- $147Ka year
- Peak month
- May1.4× the quietest month
- Top search term
- 921 bulb67K searches a year
02 · Price
A sale here is worth $10.82.
Listings sell for $10.82 on average, from $3.67 to $25.07. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 1,000 to 1,250 of them. At $10.82 that is $11K to $14K a year per listing.
- Average price
- $10.82under the $15 to $100 sweet spot
- Price range
- $3.67–$25.07
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 13K–15K
- Units per listing a year
- 1,000–1,250
- Revenue per listing a year
- $11K–$14K
- Returns
- 3.1%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
88% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.7% of listings are out of stock. The average listing ranks #50 within Lights, Bulbs & Indicators. It carries 4,840 reviews at 4.58 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 88%
- Prime listings
- 100%
- Out of stock, average day
- 1.7%
- Average rank
- #50in Lights, Bulbs & Indicators
- Average rating
- 4.58 starsAmazon United States average 4.42 stars
- Average reviews
- 4,840per listing
- Listings tracked
- 25
04 · Newcomers
1 of last year's 5 launches cleared the first-year sales bar.
5 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 50 months on average, so the names here are settling in.
- Launched, last 12 months
- 5
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 50 months
Products
Top 921 Bulb products & what they sell for
Every tracked product: its share of the shelf, its reviews, and its price.
Sign in to see the products
The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.
Competition
Competition: brands, sellers & click share
The top 5 products take 60% of clicks. Leaders hold, but buyers still shop past them.
Brands
16 rising
Sellers
56
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
60%
Top 20: 95%
Open market
15%
- Brand 150%
- Brand 212%
- Brand 310%
- Brand 47%
- Brand 53%
- Brand 62%
- Open — no brand owns it (10 brands, 15%)
Demand
921 Bulb search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Search terms
Top 921 Bulb search terms shoppers use
The exact words shoppers type, with yearly volume, growth, and conversion.
- 921 bulb67K/yr
- 921 brake light bulb7K/yr
- 921 light bulb7K/yr
- sylvania 921 bulb8K/yr
- sylvania 9216K/yr
- 921 bulbs6K/yr
- bulb 9213K/yr
- 921ll bulb3K/yr
Reviews and returns
What reviews say buyers love and hate about 921 Bulb
We read the reviews and the return reasons for every product selling here.
“not long lasting”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
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Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 921 Bulb questions
Answered from the same tracked data.









