Is bathroom light bulb profitable to sell on Amazon United Kingdom?

The niche generates £147K/yr across 24 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -34.5%. Flapen's verdict: Skip it (42/100).

How competitive is the bathroom light bulb niche?

13 brands and 37 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in bathroom light bulb?

Top complaints mined from reviews: Durability, Functionality-Overall, Bulb Flicker/Dimming/Color. The return rate is 5.8% — above our launch gate.

When does demand for bathroom light bulb peak?

Demand peaks in Jan–Oct–Nov–Dec; the busiest month runs 3.0× the quietest.

What does it cost to enter the bathroom light bulb niche?

Listings span £5.06–£11.67; the average listing price is £7.39 (sweet spot $15–$100). The average incumbent carries 377 reviews — the moat a new listing must climb.

Bathroom Light Bulb

Skip it

Prices mostly outside the sweet spot ($5.06–$11.67) — this niche doesn't clear our bar today.

Conversion

Great11.5%

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

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Review moat

Great376.96

avg incumbent reviews — the moat a new listing must climb

Competition

Okay60%

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

Brand share

Okay82%

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

Market size

Okay£147K

£147K/yr · 173K searches

Returns

Bad5.8%

return rate — above 5% kills the launch gate

Avg price

Bad£7.39

avg listing price — sweet spot $15–$100

Growth

Bad-34.5%

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

Price range

Bad£5.06–£11.67

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

Signals High Returns

Is bathroom light bulb profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, bathroom light bulb is a £147K/yr Amazon United Kingdom market (173K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Jan–Oct–Nov–Dec. Verdict: Skip it — 42/100.

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

bathroom light bulb market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 20K–25K; avg 750–1,000/product
Revenue / yr: £148K–£185K; units × avg price
Conversion rate: 11.5%
Avg BSR: #138
Page quality: 0%
Prime: 96%
Sponsored: 83%
Out of stock: 0.0%
Avg brand age: 42 months
Avg seller age: 184 days

Competition: brands, sellers & click share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

60%

Top 20: 96%

Open market

14%

Quebec33%
Akynite15%
Bynome13%
Ddlisu12%
Liuyife9%
hautllaif4%
Open — no brand owns it (7 brands, 14%)

bathroom light bulb demand & seasonality

Weekly Amazon search volume, last 91 weeks — -34.5% search growth over the last 90 days.

Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 3.0×

Open Trend

Top bathroom light bulb search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

4 pin bathroom light bulbs35K/yr -33.3%12.0% conv.
bathroom light bulb41K/yr -37.0%6.4% conv.
4 pin light bulbs32K/yr -23.9%6.5% conv.
bathroom bulb8K/yr -20.2%6.0% conv.
4 pin bulb6K/yr -36.4%8.2% conv.
bathroom light bulbs6K/yr -38.1%3.4% conv.
gr10q 4 pin 16w5K/yr -38.2%12.0% conv.
16w 4 pin bulb4K/yr -21.2%15.3% conv.
gr10q4K/yr -35.1%6.8% conv.
4 pin light bulb4K/yr -41.9%5.5% conv.

All search terms

Top bathroom light bulb products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

Quebec 16W 2D Square 4-Pin GR8 Cap Compact Fluorescent Lamp Warm White 3500K Non-Dimmable CFL Light Bulb Energy Class A AC 240V DD Flat Butterfly Bulb for Flush Mount Ceiling Lighting 8000 Hours

Quebec£7.534.1★448 rev

Bynome GR10q 4-Pin 16W CFL Light Bulb 6500K Daylight White 2D 1800LM

Bynome£6.323.9★123 rev

Quebec 28W GR10q CFL 2D Butterfly Bulb 2000LM 3500K Warm White 10000H Lifespan Energy Class A 220V 20x20cm Compact Ceiling Light for Home & Office (28W 4 Pin 3500K)

Quebec£8.314.0★411 rev

Akynite GR10q 4-Pin Bulb 16W 3500K Warm White 950LM Small 13.3x13.3cm 4 Pin CFL Compact Fluorescent Light Bulb AC 230V not dimmable GR10q DD Flat Butterfly Bulb for Flush Ceiling Light 1PC

Akynite£6.924.0★1,606 rev

Ddlisu GR10q 4 Pin 16W 3500K Warm White Compact Fluorescent Bulb

Ddlisu£7.064.0★573 rev

Newest

by launch date

Summalux GR10Q 4 PIN 16W 2D Light Bulb Small 4 Pin Square Bulb CFL Compact Fluorescent Lamp 4 Pins Butterfly Bulb Low Energy Light Bulb for Flush Ceiling Light 3500K Warm White Non-Dimmable

Summalux£5.435 rev

6mo ago

KENIU Plug and Play 2D LED Bulb GR8 2pin 950lm 7W =16W Works and Compatible with (ECG) or (CCG) ballasts for Replacing 1:1 Bathroom Light Bulb 2D 2pin GR8 16w (3000K/Warm White)

KENIU£7.8563 rev

8mo ago

B4U 2 Pack GR10q 4 Pin 16W Compact Fluorescent Lamp 2D Bathroom Light Bulb CFL Low Energy Light Bulb 4 Pin Bathroom Light Bulbs for Ceiling Lights 950LM Warm White 3500K Small Size

B4U£11.04499 rev

8mo ago

Energizer LED 2D 2 Pin GR8 Bulb 7W = 16W 750 Lumens 4000K Cool White 30 Year Lifespan

Energizer£7.59151 rev

1y ago

B4U GR10q 4 Pin Bathroom Light Bulb 2D Square 28W Compact Fluorescent Lamp CFL Low Energy Light Bulb 4 Pin Bathroom Light Bulbs for Ceiling Lights Warm White 3500K

B4U£7.295 rev

1y ago

What reviews say buyers love and hate about bathroom light bulb

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

What buyers love

Brightness/Shine/Glow20%

“Warm glow”

Quality-Overall18%

“The light bulbs are great no problem with them great quality”

Advertised Vs Actual Product15%

“Just what I needed”

Value For Money14%

“reasonably priced”

Size-Overall13%

“Fits well”

Efficiency4%

“Does the job”

Assembly/Installation4%

“Easy to install”

Bulb Flicker/Dimming/Color2%

“Good bright bulb”

Weight Light1%

“Light”

Functionality-Overall1%

“It Did the Job i have light in my bathroom”

What buyers complain about

Durability37%

“Broke quickly”

Functionality-Overall15%

“Doesnt stay in place so doesn't work”

Bulb Flicker/Dimming/Color12%

“It was flickering yesterday”

Quality-Overall11%

“Rubbish quality”

Size-Overall4%

“Small”

Value For Money4%

“slightly cheaper”

Brightness/Shine/Glow3%

“Not as bright as expected”

Strength2%

“had came broken once very fragile”

Maintenance And Repair1%

“trying to arrange replacement a struggle”

Connectivity-Overall1%

“didnt work when I connected it so had to send it back for a refund”

Top return reasons

Size-Overall45%

Functionality-Overall23%

Bulb Flicker/Dimming/Color14%

Compatibility-Overall6%

Brightness/Shine/Glow2%

Defective Material/Parts2%