Is f40cw bulb profitable to sell on Amazon United States?

The niche generates $194K/yr across 40 tracked products. 7 of 13 products launched in the last 360 days are still selling. 90-day search growth is -0.9%. Flapen's verdict: Worth a look (58/100).

How competitive is the f40cw bulb niche?

18 brands and 35 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 63% of demand.

What do buyers complain about in f40cw bulb?

Top complaints mined from reviews: Durability, Brightness/Shine/Glow, Functionality-Overall. The return rate is 3.9%.

When does demand for f40cw bulb peak?

Demand peaks in Jan; the busiest month runs 1.7× the quietest.

What does it cost to enter the f40cw bulb niche?

Listings span $19.42–$198.40; the average listing price is $50.11 (sweet spot $15–$100). The average incumbent carries 369 reviews — the moat a new listing must climb.

f40cw bulb

Worth a look

Shows a sweet-spot price point ($50.11 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Avg price

Great$50.11

avg listing price — sweet spot $15–$100

Review moat

Great368.93

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Competition

Great37%

top-5 click share — an open shelf

Conversion

Good6.9%

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

Brand share

Good63%

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

Price range

Okay$19.42–$198.40

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

Returns

Okay3.9%

return rate — above 5% kills the launch gate

Market size

Okay$194K

$194K/yr · 56K searches

Growth

Bad-0.9%

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

Signals No Dominant Brand High Price

According to Flapen's Amazon United States niche tracking, f40cw bulb is a $194K/yr Amazon United States market (56K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Jan. Verdict: Worth a look — 58/100.

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

f40cw bulb market data

Units sold / yr: 3K–4K; avg 0–100/product
Revenue / yr: $150K–$200K; units × avg price
Conversion rate: 6.9%
Avg BSR: #764
Page quality: 0%
Prime: 80%
Sponsored: 70%
Out of stock: 7.2%
Avg brand age: 72 months
Avg seller age: 185 days

Competition & brand share

Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.

Brands

18 rising

Sellers

Top-5 brand share

63%

Top 20: 100%

Top-5 click share

37%

Top 20: 86%

Open market

30%

SUSLUM17%
JESLED15%
PHILIPS13%
Master Of Light9%
CYLYT8%
SYLVANIA8%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -0.9% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.7×

Open Trend

Top f40cw bulb search terms

f40t12 fluorescent bulb21K/yr +6.7%5.0% conv.
f40t128K/yr -9.4%3.4% conv.
philips f40t12/dx 40 watt7K/yr -21.9%5.4% conv.
f40cw fluorescent bulb5K/yr -5.7%6.0% conv.
philips f40t12/cw supreme 40 watt3K/yr +36.2%9.3% conv.
f40cw bulb3K/yr +11.7%1.8% conv.
f40t12 bulb3K/yr -7.8%2.1% conv.
f40 fluorescent bulb1K/yr +21.8%2.5% conv.
philips f40t122K/yr +2.5%3.7% conv.
f40 t12 fluorescent light bulbs3K/yr -21.4%3.7% conv.

All search terms

Top f40cw 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

SUSLUM Fluorescent Light Bulbs 48 inch T8 LED Bulb 4 Foot Type A+B Replacement for F32T8 or F40T12 Tube 24W 3200LM 5000K Daylight Double or Single End Powered 2-Pack

SUSLUM$27.544.6★159 rev

SUSLUM Fluorescent Light Bulbs Replacement 4FT T8 LED Bulbs 4 Foot Type A+B 24W (65W Equivalent) 3200LM 5000K Daylight 48 Inch Tube F32T8 or F40T12 LED Replacement Non-Dimmable 2-Pack

SUSLUM$27.294.6★353 rev

Philips 27359-9 - F40T12/DX/ALTO - 40 Watt Fluorescent Tube - T12 - 6500K - 900 Series Phosphors

PHILIPS$19.424.1★180 rev

Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb

SYLVANIA$26.004.4★243 rev

CYLYT Fluorescent Light Bulbs 48 inch T8 LED Bulb 4 Foot Type A+B Replacement for F32T8 or F40T12 Tube 26W 3400LM 4100K Cool White Double or Single End Powered 4-Pack

CYLYT$39.844.2★56 rev

Newest

by launch date

JESLED Flourescent Light Bulbs 48 24W 3200LM 5000K Frosted Type A+B 2Pack

JESLED$28.031,723 rev

4mo ago

Konideke 8-Pack F40T12/841 Fluorescent Light Bulbs 40W T12 Cool White 4100K 48-Inch (4-Foot) Linear Tube G13 Bipin Base

Konideke$77.3717 rev

6mo ago

amgolibi 8-Pack 48 Inch F40T12/DL 40W 6500K Daylight Fluorescent Light Bulbs 4ft T12 Linear Tube Lights 2650 Lumens G13 Bi-Pin Base Daylight for Workshop Garage Office

amgolibi$75.6027 rev

6mo ago

Replacement for Philips 423889 F40T12/CW/SUPREME/ALTO 40 Watt 4000K T12 Fluorescent Tube Light Bulb (2 Pack)

Industrial Performance$38.9823 rev

8mo ago

Replacement for Philips 423889 F40T12/CW/SUPREME/ALTO 40 Watt 4000K T12 Fluorescent Tube Light Bulb (30 Pack)

Industrial Performance$198.4023 rev

8mo ago

What buyers say about f40cw bulb

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

What buyers love

Brightness/Shine/Glow39%

“Super Bright”

Assembly/Installation9%

“Installation was quick”

Quality-Overall8%

“Excellent quality”

Value For Money6%

“Great value”

Advertised Vs Actual Product6%

“As advertised”

Size-Overall6%

“a snug fit”

Ease Of Use3%

“Easy to use”

Bulb Flicker/Dimming/Color3%

“No weird flickering like the last set. those apparently required the ballast be removed”

Color3%

“Color was great”

Functionality-Overall2%

“Works perfect with some easy rewiring of ballast- basically just cutting ballast wires out of circuit”

What buyers complain about

Durability13%

“Died after 2 years”

Brightness/Shine/Glow11%

“its just never brighten enough”

Functionality-Overall9%

“Didn't work”

Quality-Overall7%

“Extremely poor quality”

Bulb Flicker/Dimming/Color7%

“They flicker regularly”

Defective Material/Parts5%

“it had a loose piece rolling around inside the tube”

Value For Money5%

“That said, $40 for four feels too expensive”

Size-Overall5%

“They turned out to be much too long for my use”

Advertised Vs Actual Product4%

“Don't believe the false advertising”

Compatibility-Overall3%

“since my ballasts were not on the compatibility list”

Top return reasons

Size-Overall27%

Bulb Flicker/Dimming/Color17%

Defective Material/Parts15%

Compatibility-Overall11%

Functionality-Overall8%

Brightness/Shine/Glow7%

Advertised Vs Actual Product5%

Color2%

Value For Money1%

Assembly/Installation1%

Common questions

Is f40cw bulb profitable to sell on Amazon United States?: The niche generates $194K/yr across 40 tracked products. 7 of 13 products launched in the last 360 days are still selling. 90-day search growth is -0.9%. Flapen's verdict: Worth a look (58/100).
How competitive is the f40cw bulb niche?: 18 brands and 35 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 63% of demand.
What do buyers complain about in f40cw bulb?: Top complaints mined from reviews: Durability, Brightness/Shine/Glow, Functionality-Overall. The return rate is 3.9%.
When does demand for f40cw bulb peak?: Demand peaks in Jan; the busiest month runs 1.7× the quietest.
What does it cost to enter the f40cw bulb niche?: Listings span $19.42–$198.40; the average listing price is $50.11 (sweet spot $15–$100). The average incumbent carries 369 reviews — the moat a new listing must climb.