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44

120v 40w bulb

Skip it

Prices mostly outside the sweet spot ($5.78–$13.35) — this niche doesn't clear our bar today.

Market size 26Growth 15Conversion 81Competition 54Returns 77Price range 0Avg price 25Brand share 80Review moat 37Quality gap 25

Conversion

Great8.6%

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

Brand share

Great55%

top-5 brand share — no brand owns this niche

Returns

Great1.9%

return rate — above 5% kills the launch gate

Competition

Good52%

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

Review moat

Okay2,841.97

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$109K

$109K/yr · 140K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Avg price

Okay$8.99

avg listing price — sweet spot $15–$100

Growth

Bad-20.0%

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

Price range

Bad$5.78–$13.35

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

According to Flapen's Amazon United States niche tracking, 120v 40w bulb is a $109K/yr Amazon United States market (140K searches/yr). The top 5 brands hold 55% of demand. Demand peaks in Nov. Verdict: Skip it — 44/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

120v 40w bulb market data

Units sold / yr
13K–15K
avg 250–500/product
Revenue / yr
$112K–$135K
units × avg price
Conversion rate
8.6%
Avg BSR
#142
Page quality
0%
Prime
100%
Sponsored
94%
Out of stock
0.0%
Avg brand age
53 months
Avg seller age
165 days

Competition & brand share

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

Brands

26 rising

Sellers

75

Top-5 brand share

55%

Top 20: 94%

Top-5 click share

52%

Top 20: 85%

Open market

40%

  • Jslinter16%
  • SerBion15%
  • Vgogfly8%
  • GE8%
  • CYLYT7%
  • COLWATT5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -20.0% search growth over the last 90 days.
4K3KSpike '24Black Friday '24Black Friday '25Holiday '25SepDecMarJunAugNovMarMay

Peak months: Nov · busiest ÷ quietest = 1.6×

Top 120v 40w bulb search terms

  • 120v 40w bulb45K/yr
  • 40w 120v light bulb19K/yr
  • ge 120v 40w bulb10K/yr
  • ge120v40w light bulb6K/yr
  • plc 40w 120v light bulb8K/yr
  • syl 40w 120v light bulb4K/yr
  • 120v40w light bulb5K/yr
  • 120 v 40 w light bulb6K/yr
  • feit 120v 40w5K/yr
  • ge 120v 40w4K/yr
All search terms

Top 120v 40w 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%$11K15%$16K20%$22K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

What buyers say about 120v 40w bulb

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

What buyers love

Brightness/Shine/Glow38%

“Bright light”

Value For Money13%

“Great deal”

Advertised Vs Actual Product10%

“As described”

Size-Overall8%

“Fits how it should”

Quality-Overall7%

“Excellent quality”

Bulb Flicker/Dimming/Color6%

“Great Bulbs”

Assembly/Installation3%

“Easy Install”

Efficiency3%

“Works great, dimmable”

Durability2%

“Durable”

Color2%

“These are a nice color”

What buyers complain about

Durability29%

“Didnt last”

Quality-Overall10%

“cheap quality”

Bulb Flicker/Dimming/Color9%

“NOT Dimmable”

Size-Overall7%

“To big”

Brightness/Shine/Glow6%

“Too bright”

Value For Money5%

“Not worth the lower price”

Functionality-Overall5%

“Not fully functional three pieces”

Baking3%

“clearly not for ovens as claimed”

Compatibility-Overall2%

“They are not compatible as advertised”

Color2%

“The color is not really to my liking”

Top return reasons

Size-Overall53%
Bulb Flicker/Dimming/Color13%
Brightness/Shine/Glow8%
Color7%
Advertised Vs Actual Product5%
Compatibility-Overall5%
Functionality-Overall3%
Defective Material/Parts2%
Value For Money2%
Product Condition0%

Common questions

Is 120v 40w bulb profitable to sell on Amazon United States?
The niche generates $109K/yr across 34 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -20.0%. Flapen's verdict: Skip it (44/100).
How competitive is the 120v 40w bulb niche?
26 brands and 75 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 55% of demand.
What do buyers complain about in 120v 40w bulb?
Top complaints mined from reviews: Durability, Quality-Overall, Bulb Flicker/Dimming/Color. The return rate is 1.9%.
When does demand for 120v 40w bulb peak?
Demand peaks in Nov; the busiest month runs 1.6× the quietest.
What does it cost to enter the 120v 40w bulb niche?
Listings span $5.78–$13.35; the average listing price is $8.99 (sweet spot $15–$100). The average incumbent carries 2,842 reviews — the moat a new listing must climb.