---
title: "40w Screw Bulb — £42K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/lighting/40w-screw-bulb"
last_updated: "2026-07-31T07:17:56.505Z"
locale: en
meta:
description: "Niche score 37/100 · £42K/yr market · 41K searches/yr · £7.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 37/100 · £42K/yr market · 41K searches/yr · £7.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "40w Screw Bulb — £42K/yr Amazon UK Niche (2026) - Flapen"
---
# **40w screw bulb**
**Skip it**
Prices mostly outside the sweet spot ($3.35–$12.82) — this niche doesn't clear our bar today.
Market size 10Growth 6Conversion 96Competition 51Returns 65Price range 0Avg price 21Brand share 38Review moat 58Quality gap 33
**Conversion**
**Incredible****13.3%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Good****2.4%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****1,184.12**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****54%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****£7.73**
avg listing price — sweet spot $15–$100
**Market size**
**Bad****£42K**
£42K/yr · 41K searches
**Growth**
**Bad****-38.7%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****£3.35–£12.82**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, 40w screw bulb is a £42K/yr Amazon United Kingdom market (41K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Jan–Oct–Nov–Dec. Verdict: Skip it — 37/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **40w screw bulb market data**
- **Units sold / yr**
- **5K–6K**
- avg 100–250/product
- **Revenue / yr**
- **£39K–£46K**
- units × avg price
- **Conversion rate**
- **13.3%**
- **Avg BSR**
- **#216**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **73%**
- **Out of stock**
- **0.7%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **193 days**
## **Competition & brand share**
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**25**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**54%**
Top 20: 95%
**Open market**
**14%**
- PHILIPS33% - Vanke19% - COTLEDL15% - paul russells9% - Lepro6% - Sokkldccd4% - Open — no brand owns it (8 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 89 weeks — -38.7% search growth over the last 90 days.
2K1KSpike '25Black Friday '25 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 2.7×
[**Open Trend **](https://flapen.com/research/uk/lighting/40w-screw-bulb/trend)
## **Top 40w screw bulb search terms**
- **e27 40w bulb**9K/yr-35.6%10.7% conv. - **e27 screw bulb 40w**8K/yr-38.2%11.3% conv. - **e27 bulb 40w**5K/yr-38.1%9.0% conv. - **e27 light bulb 40w**4K/yr-26.4%5.0% conv. - **e27 screw bulb 40w warm white**3K/yr-20.6%15.5% conv. - **e27 40w bulb warm white**4K/yr-45.5%13.9% conv. - **e27 40w**3K/yr-34.8%10.4% conv. - **large screw light bulbs 40w warm white**4K/yr-65.9%14.4% conv. [**All search terms **](https://flapen.com/research/uk/lighting/40w-screw-bulb/search-terms)
## **Top 40w screw 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%£2K10%£4K15%£6K20%£8K101001K10K100K 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**Vanke E27 Screw LED Bulb Warm White 2700K 6W(40W Equivalent) Pack of 3**Vanke**£5.07**4.6★2,055 rev](https://www.amazon.co.uk/dp/B08GCT2Z4M) [2**COTLEDL E27 Screw Bulbs 5W E27 LED Lights Bulbs Equivalent to 40W Incandescent Warm White 3000K G45 Edison Screw Bulb 500LM Golf Ball Lamps Energy Saving Non-Dimmable 6 Pack**COTLEDL**£8.34**4.6★546 rev](https://www.amazon.co.uk/dp/B0DDX8D36L) [3![Philips LED Frosted A60 Light Bulb 3 Pack [Warm White 2700K - E27 Edison Screw] 40W Non Dimmable. for Home Indoor Lighting Value Range](https://m.media-amazon.com/images/I/4131Xp0p2WL.jpg)**Philips LED Frosted A60 Light Bulb 3 Pack \[Warm White 2700K - E27 Edison Screw\] 40W Non Dimmable. for Home Indoor Lighting Value Range**PHILIPS**£5.17**4.6★460 rev](https://www.amazon.co.uk/dp/B09ZBJPSHT) [4![Philips LED Frosted A60 Light Bulb 2 Pack [Warm White 2700K - E27 Edison Screw] 40W Non Dimmable. for Home Indoor Lighting Value Range](https://m.media-amazon.com/images/I/41hVkuezBrL.jpg)**Philips LED Frosted A60 Light Bulb 2 Pack \[Warm White 2700K - E27 Edison Screw\] 40W Non Dimmable. for Home Indoor Lighting Value Range**PHILIPS**£3.35**4.6★460 rev](https://www.amazon.co.uk/dp/B09ZBJZRCY) [5![PHILIPS LED Premium Frosted A60 Light Bulb [E27 Edison Screw] 4.5W - 40W Equivalent Warm White (2700K) Non Dimmable](https://m.media-amazon.com/images/I/41qeJ8sjgeL.jpg)**PHILIPS LED Premium Frosted A60 Light Bulb \[E27 Edison Screw\] 4.5W - 40W Equivalent Warm White (2700K) Non Dimmable**PHILIPS**£5.89**4.6★1,597 rev](https://www.amazon.co.uk/dp/B08HTXH9L6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Lepro G45 E27 Screw Bulb A-Rated Warm White 2.2W = 40W 470LM Pack of 2**Lepro**£7.65**184 rev10mo ago](https://www.amazon.co.uk/dp/B0F89XHL8W) [**Lepro G45 E27 Screw Bulb A-Rated Warm White 2.2W = 40W 470LM Pack of 4**Lepro**£12.05**184 rev10mo ago](https://www.amazon.co.uk/dp/B0F89WPPDV) [**Vanke E27 Screw LED Bulb Warm White 2700K 6W(40W Equivalent) Pack of 6**Vanke**£7.30**2,055 rev1y ago](https://www.amazon.co.uk/dp/B0F324LJ76) [**COTLEDL E27 Screw Bulbs 5W E27 LED Lights Bulbs Equivalent to 40W Incandescent Warm White 3000K G45 Edison Screw Bulb 500LM Golf Ball Lamps Energy Saving Non-Dimmable 6 Pack**COTLEDL**£8.34**546 rev1y ago](https://www.amazon.co.uk/dp/B0DDX8D36L) [**COTLEDL E27 LED Bulbs 5W Edison Screw (ES) Bulb Equivalent 40W Incandescent Cool White 6000K Energy Saving 500LM G45 Golf Ball Light Bulb Not Dimmable No Flicker Lamps 6 Pack**COTLEDL**£8.25**546 rev1y ago](https://www.amazon.co.uk/dp/B0DDXCJPWX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Lepro G45 E27 Screw Bulb A-Rated Warm White 2.2W = 40W 470LM Pack of 4**Lepro**£12.05**4.5★**▲ 355%**](https://www.amazon.co.uk/dp/B0F89WPPDV) [![Philips LED Frosted A60 Light Bulb 2 Pack [Warm White 2700K - E27 Edison Screw] 40W Non Dimmable. for Home Indoor Lighting Value Range](https://m.media-amazon.com/images/I/41hVkuezBrL.jpg)**Philips LED Frosted A60 Light Bulb 2 Pack \[Warm White 2700K - E27 Edison Screw\] 40W Non Dimmable. for Home Indoor Lighting Value Range**PHILIPS**£3.35**4.6★**▲ 291%**](https://www.amazon.co.uk/dp/B09ZBJZRCY) [**Lepro G45 E27 Screw Bulb A-Rated Warm White 2.2W = 40W 470LM Pack of 2**Lepro**£7.65**4.5★**▲ 208%**](https://www.amazon.co.uk/dp/B0F89XHL8W) [**Vanke E27 Screw LED Bulb Warm White 2700K 6W(40W Equivalent) Pack of 6**Vanke**£7.30**4.6★**▲ 170%**](https://www.amazon.co.uk/dp/B0F324LJ76) [**paul russells E27 Edison Screw LED Filament 4.5Watt 40W Equivalent 470LM Lumens 2700K ES Standard GLS A60 Super Bright Energy Saving Light Non-Dimmable - Warm White Bulbs - 3 Pack**paul russells**£7.53**4.6★**▲ 152%**](https://www.amazon.co.uk/dp/B07Z97R2X5)
**~~View all trending →~~**
## **What buyers say about 40w screw bulb**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Brightness/Shine/Glow**30%
*“They are bright”*
**Quality-Overall**20%
*“arrived when expected, as described and good quality”*
**Value For Money**18%
*“Excellent value for money”*
**Advertised Vs Actual Product**12%
*“Does what it says”*
**Bulb Flicker/Dimming/Color**3%
*“Nice bulbs They do the job well”*
**Size-Overall**2%
*“exactly the right fit”*
**Color**2%
*“a good colour”*
**Durability**2%
*“Good quality and it seems durable”*
**Design-Overall**2%
*“Nice design and like the glow they give off”*
**Efficiency**1%
*“Works fine”*
### **What buyers complain about **
**Brightness/Shine/Glow**17%
*“Bad lighting”*
**Durability**15%
*“Doesn't last”*
**Size-Overall**15%
*“Read the discription i did not realise they were miniture bulbs not full size”*
**Bulb Flicker/Dimming/Color**13%
*“Faulty bulb”*
**Quality-Overall**10%
*“Poor quality”*
**Color**8%
*“the only problem they are cool white”*
**Advertised Vs Actual Product**3%
*“Not as described at all”*
**Heating**3%
*“Bulb gets very hot as soon as it is turned on”*
**Connectivity-Overall**2%
*“Only two of the bulbs Connected to alexa”*
**Temperature Control**1%
*“the heat from it would slowly keep some warmth in the place”*
### **Top return reasons **
**Size-Overall**53%
**Brightness/Shine/Glow**16%
**Bulb Flicker/Dimming/Color**9%
**Color**7%
**Functionality-Overall**5%
**Compatibility-Overall**3%
**Advertised Vs Actual Product**2%
**Quality-Overall**1%
**Strength**1%
**Defective Material/Parts**0%
## **Common questions**
- **Is 40w screw bulb profitable to sell on Amazon United Kingdom?**
- The niche generates £42K/yr across 26 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -38.7%. Flapen's verdict: Skip it (37/100).
- **How competitive is the 40w screw bulb niche?**
- 14 brands and 25 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in 40w screw bulb?**
- Top complaints mined from reviews: Brightness/Shine/Glow, Durability, Size-Overall. The return rate is 2.4%.
- **When does demand for 40w screw bulb peak?**
- Demand peaks in Jan–Oct–Nov–Dec; the busiest month runs 2.7× the quietest.
- **What does it cost to enter the 40w screw bulb niche?**
- Listings span £3.35–£12.82; the average listing price is £7.73 (sweet spot $15–$100). The average incumbent carries 1,184 reviews — the moat a new listing must climb.
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