Is py21w bulb profitable to sell on Amazon United States?

The niche generates $57K/yr across 28 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is -11.0%. Flapen's verdict: Skip it (45/100).

How competitive is the py21w bulb niche?

20 brands and 51 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 62% of demand.

What do buyers complain about in py21w bulb?

Top complaints mined from reviews: Size-Overall, Durability, Quality-Overall. The return rate is 5.6% — above our launch gate.

What does it cost to enter the py21w bulb niche?

Listings span $7.13–$52.53; the average listing price is $17.35 (sweet spot $15–$100). The average incumbent carries 3,248 reviews — the moat a new listing must climb.

py21w bulb

Skip it

A small market ($57K/yr) — this niche doesn't clear our bar today.

Avg price

Great$17.35

avg listing price — sweet spot $15–$100

Price range

Great$7.13–$52.53

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Good6.7%

search→purchase rate — share of searches ending in a sale

Brand share

Good62%

top-5 brand share — brands hold most of the demand

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Review moat

Okay3,248.25

avg incumbent reviews — the moat a new listing must climb

Returns

Bad5.6%

return rate — above 5% kills the launch gate

Growth

Bad-11.0%

90-day search growth — must beat 0% to launch

Market size

Bad$57K

$57K/yr · 50K searches

Signals No Dominant Brand Low Review Barrier High Returns

According to Flapen's Amazon United States niche tracking, py21w bulb is a $57K/yr Amazon United States market (50K searches/yr). The top 5 brands hold 62% of demand. Verdict: Skip it — 45/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

py21w bulb market data

Units sold / yr: 3K–4K; avg 100–250/product
Revenue / yr: $52K–$69K; units × avg price
Conversion rate: 6.7%
Avg BSR: #1,011
Page quality: 0%
Prime: 93%
Sponsored: 71%
Out of stock: 2.5%
Avg brand age: 46 months
Avg seller age: 178 days

Competition & brand share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 rising

Sellers

Top-5 brand share

62%

Top 20: 100%

Top-5 click share

54%

Top 20: 94%

Open market

31%

SYLVANIA14%
ALKOREY13%
AUXITO12%
AUXLIGHT12%
BlyilyB10%
OXILAM7%

Demand

Weekly Amazon search volume, last 31 weeks — -11.0% search growth over the last 90 days.

Open Trend

Top py21w bulb search terms

py21w bulb12K/yr -10.2%6.5% conv.
7507 led bulb10K/yr -14.4%5.5% conv.
7507 bulb8K/yr +15.6%8.3% conv.
py21w led bulb6K/yr -5.7%5.1% conv.
py21w6K/yr -11.1%6.0% conv.
7507 led bulb amber4K/yr -50.2%4.7% conv.
py21w led bulb amber3K/yr -43.1%6.5% conv.

All search terms

Top py21w 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

SYLVANIA - 7507 Long Life Miniature - Bulb Ideal for Turn Signal Applications (Contains 2 Bulbs)

SYLVANIA$8.174.5★335 rev

AUXLIGHT 7507 1156(150) BAU15S LED Bulbs Extremely Bright PY21W 12496 7507AST 2641A Replacement for Turn Signal Lights 2200K Amber Yellow (Pack of 2)

AUXLIGHT$19.444.5★407 rev

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

AUXITO$36.144.5★35,933 rev

ALKOREY-1156 S25 PY21W Miniature Bulb 2100K Amber Light 12V 21W Ba15s Replacement for Turn Signal Lights Back-Up/Reverse Lights 2 Pack

ALKOREY$7.164.1★61 rev

BlyilyB 2-Pack 9-30V BAU15S PY21W 7507 High Brightness Low Power Amber Yellow LED Bulbs Replacement For Turn Signal Lights

BlyilyB$9.654.4★319 rev

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

AUXITO$36.1435,933 rev

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)

Auxbeam$16.83821 rev

4mo ago

Flosser Incandescent BAU15s PY21W 7507 21W 667101 Amber Turn Signal Light Bulbs Replacement Lamp (Pack of 2) Made in Germany

FL�SSER$9.974 rev

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

Auxbeam$36.52432 rev

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

AUTOONE$15.135,697 rev

8mo ago

What buyers say about py21w bulb

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

What buyers love

Brightness/Shine/Glow41%

“Extremely Bright”

Size-Overall17%

“fitment was good with a snug fit in the sockets”

Quality-Overall10%

“They seem to be well constructed”

Value For Money10%

“Your money well worth”

Advertised Vs Actual Product5%

“as advertised”

Assembly/Installation4%

“Easy install”

Efficiency3%

“Worked perfectly”

Color2%

“Color is great”

Durability2%

“Durability has been built into the design”

Ease Of Use1%

“easy to use”

What buyers complain about

Size-Overall15%

“Didn't fit the car model, as advertised”

Durability13%

“Didnt last”

Quality-Overall13%

“Cheap Bulbs”

Compatibility-Overall11%

“Wrong DO NOT FIT 2014 Jeep Grand Cherokee”

Value For Money10%

“These are not worth the money”

Advertised Vs Actual Product6%

“Didn't fit the car model, as advertised”

Color4%

“personaly I dont like the yellow so wont use em”

Brightness/Shine/Glow4%

“they dont shine any brighter”

Paint Quality4%

“they are just painted on”

Functionality-Overall4%

“DRL does not work”

Top return reasons

Size-Overall49%

Compatibility-Overall23%

Advertised Vs Actual Product5%

Functionality-Overall5%

Socket/Port/Plug3%

Brightness/Shine/Glow3%

Defective Material/Parts3%

Value For Money2%

Assembly/Installation2%