bathroom light bulb
Skip itPrices 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
Great376.96avg 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£7.39avg listing price — sweet spot $15–$100
Growth
Bad-34.5%90-day search growth — must beat 0% to launch
Price range
Bad£5.06–£11.67cheapest to priciest tracked listing — scored on the share inside $15–$100
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 data
- 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 & brand share
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.Brands
13 falling
Sellers
37
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%)
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×
Top bathroom light bulb search terms
- 4 pin bathroom light bulbs35K/yr
- bathroom light bulb41K/yr
- 4 pin light bulbs32K/yr
- bathroom bulb8K/yr
- 4 pin bulb6K/yr
- bathroom light bulbs6K/yr
- gr10q 4 pin 16w5K/yr
- 16w 4 pin bulb4K/yr
- gr10q4K/yr
- 4 pin light bulb4K/yr
Top bathroom light 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.
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
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
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
Energizer LED 2D 2 Pin GR8 Bulb 7W = 16W 750 Lumens 4000K Cool White 30 Year Lifespan
Energizer£7.59151 rev
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
Trending
90-day click momentumB4U 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£7.293.3★
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£5.433.9★
![PLUSHA 28W 2D Square 4-Pin GR10Q Energy Saving Light Bulb Cool White 3500K | Long-Lasting & Efficient for Home Office Commercial Use | [Energy Class A]](https://m.media-amazon.com/images/I/31lx-XotQBL.jpg)
PLUSHA 28W 2D Square 4-Pin GR10Q Energy Saving Light Bulb Cool White 3500K | Long-Lasting & Efficient for Home Office Commercial Use | [Energy Class A]
PLUSHA£5.883.4★
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£11.044.2★
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£7.854.2★
What buyers say about bathroom light bulb
What buyers praise and complain about, mined from review topics.What buyers love
“Warm glow”
“The light bulbs are great no problem with them great quality”
“Just what I needed”
“reasonably priced”
“Fits well”
“Does the job”
“Easy to install”
“Good bright bulb”
“Light”
“It Did the Job i have light in my bathroom”
What buyers complain about
“Broke quickly”
“Doesnt stay in place so doesn't work”
“It was flickering yesterday”
“Rubbish quality”
“Small”
“slightly cheaper”
“Not as bright as expected”
“had came broken once very fragile”
“trying to arrange replacement a struggle”
“didnt work when I connected it so had to send it back for a refund”
Top return reasons
Common questions
- 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.