---
title: "Bathroom Light Bulb — £147K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/lighting/bathroom-light-bulb"
last_updated: "2026-07-31T07:58:16.260Z"
locale: en
meta:
description: "Niche score 42/100 · £147K/yr market · 173K searches/yr · £7.39 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · £147K/yr market · 173K searches/yr · £7.39 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Bathroom Light Bulb — £147K/yr Amazon UK Niche (2026) - Flapen"
---
# **bathroom light bulb**
**Skip it**
Prices mostly outside the sweet spot ($5.06–$11.67) — this niche doesn't clear our bar today.
Market size 32Growth 8Conversion 93Competition 41Returns 22Price range 0Avg price 21Brand share 38Review moat 81Quality gap 90
**Conversion**
**Great****11.5%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****376.96**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****60%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****£147K**
£147K/yr · 173K searches
**Returns**
**Bad****5.8%**
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**](https://flapen.com/research/niches?market=uk&signal=high_returns "Return rate > 5%")
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 ~~](https://flapen.com/research/methodology)
## **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.
5K3KSpike '25Prime Day '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 3.0×
[**Open Trend **](https://flapen.com/research/uk/lighting/bathroom-light-bulb/trend)
## **Top bathroom light bulb search terms**
- **4 pin bathroom light bulbs**35K/yr-33.3%12.0% conv. - **bathroom light bulb**41K/yr-37.0%6.4% conv. - **4 pin light bulbs**32K/yr-23.9%6.5% conv. - **bathroom bulb**8K/yr-20.2%6.0% conv. - **4 pin bulb**6K/yr-36.4%8.2% conv. - **bathroom light bulbs**6K/yr-38.1%3.4% conv. - **gr10q 4 pin 16w**5K/yr-38.2%12.0% conv. - **16w 4 pin bulb**4K/yr-21.2%15.3% conv. - **gr10q**4K/yr-35.1%6.8% conv. - **4 pin light bulb**4K/yr-41.9%5.5% conv. [**All search terms **](https://flapen.com/research/uk/lighting/bathroom-light-bulb/search-terms)
## **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.
0%5%£7K10%£15K15%£22K20%£29K1101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**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**£7.53**4.1★448 rev](https://www.amazon.co.uk/dp/B0DZ2NVD8Q) [2**Bynome GR10q 4-Pin 16W CFL Light Bulb 6500K Daylight White 2D 1800LM**Bynome**£6.32**3.9★123 rev](https://www.amazon.co.uk/dp/B0DJX4TH4V) [3**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**£8.31**4.0★411 rev](https://www.amazon.co.uk/dp/B0DZ2WJZP8) [4**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**£6.92**4.0★1,606 rev](https://www.amazon.co.uk/dp/B0CKRDZ1VX) [5**Ddlisu GR10q 4 Pin 16W 3500K Warm White Compact Fluorescent Bulb**Ddlisu**£7.06**4.0★573 rev](https://www.amazon.co.uk/dp/B0D6BW81SH)
**~~View all top sellers →~~**
### **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**£5.43**5 rev6mo ago](https://www.amazon.co.uk/dp/B0GK7DJKZS) [**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**£7.85**63 rev8mo ago](https://www.amazon.co.uk/dp/B0FL1QYN8N) [**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**£11.04**499 rev8mo ago](https://www.amazon.co.uk/dp/B0FZBQHLTS) [**Energizer LED 2D 2 Pin GR8 Bulb 7W = 16W 750 Lumens 4000K Cool White 30 Year Lifespan**Energizer**£7.59**151 rev1y ago](https://www.amazon.co.uk/dp/B0F3539F2J) [**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**£7.29**5 rev1y ago](https://www.amazon.co.uk/dp/B0GQZGJXSJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**£7.29**3.3★**▲ 483%**](https://www.amazon.co.uk/dp/B0GQZGJXSJ) [**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**£5.43**3.9★**▲ 368%**](https://www.amazon.co.uk/dp/B0GK7DJKZS) [![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**£5.88**3.4★**▲ 295%**](https://www.amazon.co.uk/dp/B0DZ24RPBR) [**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**£11.04**4.2★**▲ 282%**](https://www.amazon.co.uk/dp/B0FZBQHLTS) [**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**£7.85**4.2★**▲ 253%**](https://www.amazon.co.uk/dp/B0FL1QYN8N)
**~~View all trending →~~**
## **What buyers say about bathroom light bulb**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Brightness/Shine/Glow**20%
*“Warm glow”*
**Quality-Overall**18%
*“The light bulbs are great no problem with them great quality”*
**Advertised Vs Actual Product**15%
*“Just what I needed”*
**Value For Money**14%
*“reasonably priced”*
**Size-Overall**13%
*“Fits well”*
**Efficiency**4%
*“Does the job”*
**Assembly/Installation**4%
*“Easy to install”*
**Bulb Flicker/Dimming/Color**2%
*“Good bright bulb”*
**Weight Light**1%
*“Light”*
**Functionality-Overall**1%
*“It Did the Job i have light in my bathroom”*
### **What buyers complain about **
**Durability**37%
*“Broke quickly”*
**Functionality-Overall**15%
*“Doesnt stay in place so doesn't work”*
**Bulb Flicker/Dimming/Color**12%
*“It was flickering yesterday”*
**Quality-Overall**11%
*“Rubbish quality”*
**Size-Overall**4%
*“Small”*
**Value For Money**4%
*“slightly cheaper”*
**Brightness/Shine/Glow**3%
*“Not as bright as expected”*
**Strength**2%
*“had came broken once very fragile”*
**Maintenance And Repair**1%
*“trying to arrange replacement a struggle”*
**Connectivity-Overall**1%
*“didnt work when I connected it so had to send it back for a refund”*
### **Top return reasons **
**Size-Overall**45%
**Functionality-Overall**23%
**Bulb Flicker/Dimming/Color**14%
**Compatibility-Overall**6%
**Brightness/Shine/Glow**2%
**Defective Material/Parts**2%
**Maintenance And Repair**1%
**Durability**1%
**Connectivity-Overall**1%
**Color**1%
## **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.
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