Py21w Bulb
FailShoppers spend an estimated $57K a year here, so Py21w Bulb is a Fail.
- Flapen Score
- 45 / 100Ranks 4,788 of 7,287 Automotive niches · −4 vs the category median of 4945
- Market size
- $57K/yr50K searches / yr
- 90-day growth
- -11.0%search demand this quarter
- Competition
- 54%top-5 click share · 20 brands · 51 sellers
Flapen Score
Py21w Bulb against its category
The dotted line is the Automotive average. Past it, Py21w Bulb is stronger. Inside it, weaker.
Market
The Py21w Bulb market on Amazon at a glance
Shoppers on Amazon United States searched for Py21w Bulb 50K times last year and spent an estimated $57K. The top 5 brands take 62% of clicks. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 6.7% of those searches ended in a purchase.
Shoppers searched for this 50K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 6.7% of those searches ended in a purchase. Searches in the last 90 days moved -11.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $57K a year.
- Searches, last 12 months
- 50K
- Growth, 90 days vs prior 90
- -11.0%
- Conversion, latest week
- 6.7%
- Market size, estimated
- $57Ka year
- Top search term
- py21w bulb12K searches a year
02 · Price
A sale here is worth $17.35.
Listings sell for $17.35 on average, from $7.13 to $52.53. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 100 to 250 of them. At $17.35 that is $2K to $4K a year per listing.
- Average price
- $17.35inside the $15 to $100 sweet spot
- Price range
- $7.13–$52.53
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $2K–$4K
- Returns
- 5.6%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
71% of listings pay for placement with sponsored ads. 93% ship with Prime. On an average day, 2.5% of listings are out of stock. The average listing ranks #1,011 within Lights, Bulbs & Indicators. It carries 3,248 reviews at 4.42 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 71%
- Prime listings
- 93%
- Out of stock, average day
- 2.5%
- Average rank
- #1,011in Lights, Bulbs & Indicators
- Average rating
- 4.42 starsAmazon United States average 4.42 stars
- Average reviews
- 3,248per listing
- Listings tracked
- 28
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 46 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
- 46 months
Products
Top Py21w Bulb products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 9, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
SYLVANIA - 7507 Long Life Miniature - Bulb Ideal for Turn Signal Applications (Contains 2 Bulbs)
- Price
- $8.17
- Rating
- 4.5/5
- Reviews
- 335
- Age
- 9y ago

AUXLIGHT 7507 1156(150) BAU15S LED Bulbs Extremely Bright PY21W 12496 7507AST 2641A Replacement for Turn Signal Lights 2200K Amber Yellow (Pack of 2)
- Price
- $19.44
- Rating
- 4.5/5
- Reviews
- 407
- Age
- 3y ago

AUXITO CANBUS 7507 BAU15S LED Bulbs Amber Yellow with Built-in Resistor PY21W 12496 2641A 1156(150) Anti Hyper Flash Error Free Front Rear Turn Signal Lights and Blinker Parking Lights Pack of 2
- Price
- $36.14
- Rating
- 4.5/5
- Reviews
- 35,933
- Age
- 2mo ago

ALKOREY-1156 S25 PY21W Miniature Bulb 2100K Amber Light 12V 21W Ba15s Replacement for Turn Signal Lights Back-Up/Reverse Lights 2 Pack
- Price
- $7.16
- Rating
- 4.1/5
- Reviews
- 61
- Age
- 1y ago

BlyilyB 2-Pack 9-30V BAU15S PY21W 7507 High Brightness Low Power Amber Yellow LED Bulbs Replacement For Turn Signal Lights
- Price
- $9.65
- Rating
- 4.4/5
- Reviews
- 319
- Age
- 6y ago
Trending
estimated 90-day click momentum
AUXITO CANBUS 7507 BAU15S LED Bulbs Amber Yellow with Built-in Resistor PY21W 12496 2641A 1156(150) Anti Hyper Flash Error Free Front Rear Turn Signal Lights and Blinker Parking Lights Pack of 2
- Price
- $36.14
- Rating
- 4.5/5
- Reviews
- 35,933
- Age
- 2mo ago

Auxbeam 2026 B2 Series BAU15S LED Bulb Amber Soft Light Long Life 400% Brighter 7507 PY21W Bulbs for Turn Signal Blinker DRL Parking Lights (Need Resistors for Brake or Turn Signal Light Use)
- Price
- $16.83
- Rating
- 4.6/5
- Reviews
- 821
- Age
- 4mo ago

Flosser Incandescent BAU15s PY21W 7507 21W 667101 Amber Turn Signal Light Bulbs Replacement Lamp (Pack of 2) Made in Germany
- Price
- $9.97
- Rating
- 4.7/5
- Reviews
- 4
- Age
- 7mo ago

Zikefest 10PCS 1157 Bulb Tail High and Low Brake Light Bulb P21/5W S25 2057 2357 7528 BAY15D Light Bulb Turn Signal Light Bulb Replacement Universal Halogen Brake Tail Light Parking Light (Amber)
- Price
- $7.41
- Rating
- 4.5/5
- Reviews
- 332
- Age
- 1y ago

Flosser Incandescent BAU15s PY21W 7507 21W 9667101 Amber Turn Signal Light Bulbs Replacement Lamp (Pack of 2) Made in Germany
- Price
- $10.00
- Rating
- 5.0/5
- Reviews
- 4
- Age
- 1y ago
Newest
by launch date
AUXITO CANBUS 7507 BAU15S LED Bulbs Amber Yellow with Built-in Resistor PY21W 12496 2641A 1156(150) Anti Hyper Flash Error Free Front Rear Turn Signal Lights and Blinker Parking Lights Pack of 2
- Price
- $36.14
- Rating
- 4.5/5
- Reviews
- 35,933
- Age
- 2mo ago

Auxbeam 2026 B2 Series BAU15S LED Bulb Amber Soft Light Long Life 400% Brighter 7507 PY21W Bulbs for Turn Signal Blinker DRL Parking Lights (Need Resistors for Brake or Turn Signal Light Use)
- Price
- $16.83
- Rating
- 4.6/5
- Reviews
- 821
- Age
- 4mo ago

Flosser Incandescent BAU15s PY21W 7507 21W 667101 Amber Turn Signal Light Bulbs Replacement Lamp (Pack of 2) Made in Germany
- Price
- $9.97
- Rating
- 4.7/5
- Reviews
- 4
- Age
- 7mo ago

Auxbeam B21 Series 7507 BAU15S LED Bulbs Amber Yellow Built in Resistor CANBUS Error Free Anti Hyper Flash PY21W Bulb 600% Super Bright Turn Signal Light Need Resistors for Some Trucks
- Price
- $36.52
- Rating
- 4.4/5
- Reviews
- 432
- Age
- 7mo ago

AUTOONE White 1156 LED Light Bulbs 700% Super Bright & 6500K White 7506 BA15S P21W LED Bulbs for Backup Reverse Signal Blinker Tail DRL Brake Running Parking Lights 2PCS
- Price
- $15.13
- Rating
- 4.6/5
- Reviews
- 5,697
- Age
- 8mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 54% of clicks. Leaders hold, but buyers still shop past them.
Brands
20 rising
Sellers
51
Est. top-5 brand share
62%
Top 20: 100%
Est. top-5 click share
54%
Top 20: 94%
Open market
31%
- SYLVANIA14%
- ALKOREY13%
- AUXITO12%
- AUXLIGHT12%
- BlyilyB10%
- OXILAM7%
Demand
Py21w Bulb search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3× · 7 of 12 months tracked
Search terms
Top Py21w Bulb search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- py21w bulb12K/yr
- 7507 led bulb10K/yr
- 7507 bulb8K/yr
- py21w led bulb6K/yr
- py21w6K/yr
- 7507 led bulb amber4K/yr
- py21w led bulb amber3K/yr
Reviews and returns
What reviews say buyers love and hate about Py21w Bulb
We read the reviews and the return reasons for every product selling here.
“Didn't fit the car model, as advertised”
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.
15 topics
Keep looking
Related niches
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 Py21w Bulb questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









