---
title: "100 Watt Bayonet Light Bulbs — £116K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/lighting/100-watt-bayonet-light-bulbs"
last_updated: "2026-07-31T11:28:09.340Z"
locale: en
meta:
description: "Niche score 43/100 · £116K/yr market · 110K searches/yr · £8.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · £116K/yr market · 110K searches/yr · £8.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "100 Watt Bayonet Light Bulbs — £116K/yr Amazon UK Niche (2026) - Flapen"
---
# **100 watt bayonet light bulbs**
**Skip it**
Soft demand (-53.5% this quarter) — this niche doesn't clear our bar today.
Market size 27Growth 0Conversion 96Competition 51Returns 84Price range 0Avg price 23Brand share 57Review moat 70Quality gap 30
**Conversion**
**Incredible****12.8%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.5%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****711.35**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****71%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****55%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£116K**
£116K/yr · 110K searches
**Avg price**
**Bad****£8.25**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-53.5%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****£4.98–£12.86**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, 100 watt bayonet light bulbs is a £116K/yr Amazon United Kingdom market (110K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Jan–Feb–Oct–Nov–Dec. Verdict: Skip it — 43/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **100 watt bayonet light bulbs market data**
- **Units sold / yr**
- **13K–15K**
- avg 500–750/product
- **Revenue / yr**
- **£103K–£124K**
- units × avg price
- **Conversion rate**
- **12.8%**
- **Avg BSR**
- **#364**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **85%**
- **Out of stock**
- **11.7%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **184 days**
## **Competition & brand share**
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▼falling
**Sellers**
**35**
**Top-5 brand share**
**71%**
Top 20: 100%
**Top-5 click share**
**55%**
Top 20: 100%
**Open market**
**22%**
- Energizer27% - EvaStary16% - ROTTYI10% - Lepro9% - Generic8% - paul russells7%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -53.5% search growth over the last 90 days.
4K3KSpike '24Spike '25Black Friday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb, Oct, Nov, Dec · busiest ÷ quietest = 3.7×
[**Open Trend **](https://flapen.com/research/uk/lighting/100-watt-bayonet-light-bulbs/trend)
## **Top 100 watt bayonet light bulbs search terms**
- **100 watt bayonet light bulbs**18K/yr-51.0%8.5% conv. - **100 watt light bulbs**11K/yr-47.9%4.4% conv. - **100w bayonet light bulbs**14K/yr-63.7%12.6% conv. - **bayonet light bulb 100w**8K/yr-53.6%14.3% conv. - **light bulb 100w**5K/yr-39.6%9.4% conv. - **100w bulb**8K/yr-57.6%6.0% conv. - **100w equivalent led light bulbs**4K/yr-61.4%8.2% conv. - **100w led bulb bayonet**5K/yr-40.5%8.8% conv. - **100w light bulbs bayonet**4K/yr-35.4%10.0% conv. - **100w light bulb**4K/yr-37.8%8.1% conv. [**All search terms **](https://flapen.com/research/uk/lighting/100-watt-bayonet-light-bulbs/search-terms)
## **Top 100 watt bayonet light bulbs 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%10%£12K20%£23K30%£35K40%£47K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Energizer B22 Bayonet Light Bulbs 1521lm Daylight White 6500K 4 Pack**Energizer**£7.92**4.7★1,533 rev](https://www.amazon.co.uk/dp/B0D2DPRXF1) [2**100W Bayonet Light Bulbs 13W B22 LED Bayonet Bulbs Daylight White 4 Pack**EvaStary**£6.69**4.4★1,920 rev](https://www.amazon.co.uk/dp/B09FZ9RTFY) [3**ROTTYI B22 Bayonet Light Bulbs 100W Equivalent Cool White 6500K Daylight Bulbs 11W 1210LM LED Bulb BC A60 GLS Energy Saving Lightbulbs Classic Shape Non-dimmable Pack of 6**ROTTYI**£7.35**4.6★881 rev](https://www.amazon.co.uk/dp/B0BHVWQ2CQ) [4**B22 LED Bayonet Light Bulbs 100W Equivalent 13.5W 1520lm Daylight Cool White 6500K Non-Dimmable Energy Class E Pack of 6**Generic**£10.90**4.7★111 rev](https://www.amazon.co.uk/dp/B0FNCWNVSX) [5**Linkind Bayonet Light Bulb 100w Equivalent Daylight White 5000K 13.7W 1600lm Super Bright B22d LED Bulbs BC GLS Energy Saving Bulbs Non-Dimmable 2 Pack**Linkind**£5.81**4.6★281 rev](https://www.amazon.co.uk/dp/B0DWSWYDXP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Lepro 1520lm Bayonet Light Bulb A-Rated 7.2W = 100W Warm White Pack of 2**Lepro**£10.53**126 rev9mo ago](https://www.amazon.co.uk/dp/B0F58X39GF) [**B22 LED Bayonet Light Bulbs 100W Equivalent 13.5W 1520lm Daylight Cool White 6500K Non-Dimmable Energy Class E Pack of 6**Generic**£10.90**111 rev11mo ago](https://www.amazon.co.uk/dp/B0FNCWNVSX) [**B22 Bayonet LED Light Bulb Equivalent to 100W 13.5W 1520 Lumen Warm White 2700K Non-Dimmable Energy Efficiency Class E 6 Pack**Generic**£10.73**111 rev11mo ago](https://www.amazon.co.uk/dp/B0FN7VKQMG) [**Bayonet Light Bulbs 100W Equivalent Cool White 6000K 1200LM 2Pack**EvaStary**£5.46**147 rev1y ago](https://www.amazon.co.uk/dp/B0F7L6FTZ5) [**Linkind Bayonet Light Bulb 100w Equivalent Daylight White 5000K 13.7W 1600lm Super Bright B22d LED Bulbs BC GLS Energy Saving Bulbs Non-Dimmable 2 Pack**Linkind**£5.81**281 rev1y ago](https://www.amazon.co.uk/dp/B0DWSWYDXP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Linkind Bayonet Light Bulb 100w Equivalent Daylight White 5000K 13.7W 1600lm Super Bright B22d LED Bulbs BC GLS Energy Saving Bulbs Non-Dimmable 2 Pack**Linkind**£5.81**4.6★**▲ 411%**](https://www.amazon.co.uk/dp/B0DWSWYDXP) [**B22 LED Bayonet Light Bulbs 100W Equivalent 13.5W 1520lm Daylight Cool White 6500K Non-Dimmable Energy Class E Pack of 6**Generic**£10.90**4.7★**▲ 236%**](https://www.amazon.co.uk/dp/B0FNCWNVSX) [**B22 Bayonet LED Light Bulb Equivalent to 100W 13.5W 1520 Lumen Warm White 2700K Non-Dimmable Energy Efficiency Class E 6 Pack**Generic**£10.73**4.7★**▲ 161%**](https://www.amazon.co.uk/dp/B0FN7VKQMG) [**Lepro 1520lm Bayonet Light Bulb A-Rated 7.2W = 100W Warm White Pack of 2**Lepro**£10.53**4.7★**▲ 134%**](https://www.amazon.co.uk/dp/B0F58X39GF) [**ROTTYI B22 Bayonet Light Bulbs 100W Equivalent Cool White 6500K Daylight Bulbs 11W 1210LM LED Bulb BC A60 GLS Energy Saving Lightbulbs Classic Shape Non-dimmable Pack of 6**ROTTYI**£7.35**4.6★**▲ 131%**](https://www.amazon.co.uk/dp/B0BHVWQ2CQ)
**~~View all trending →~~**
## **What buyers say about 100 watt bayonet light bulbs**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Brightness/Shine/Glow**49%
*“Bright light”*
**Value For Money**16%
*“Value for money”*
**Quality-Overall**11%
*“Excellent product”*
**Advertised Vs Actual Product**8%
*“Exactly what I wanted”*
**Color**4%
*“perfect colour”*
**Bulb Flicker/Dimming/Color**3%
*“Bright cool bulb”*
**Size-Overall**2%
*“They fit”*
**Efficiency**2%
*“Efficient”*
**Durability**1%
*“Very good product long life”*
**Assembly/Installation**1%
*“easy to install”*
### **What buyers complain about **
**Brightness/Shine/Glow**28%
*“too bright couldnt use”*
**Quality-Overall**13%
*“Some rubbish”*
**Bulb Flicker/Dimming/Color**11%
*“Some rubbish, one bulb burned out after 2 days of use”*
**Size-Overall**9%
*“do not fit into the ceiling light”*
**Durability**9%
*“Longevity proved disappointing”*
**Color**7%
*“the color is harsh rather than pleasant”*
**Noise Level**6%
*“Annoying Buzz noise”*
**Defective Material/Parts**3%
*“One of the light bulbs did not work”*
**Functionality-Overall**2%
*“Relying on one bulb doesnt brighten the room well enough”*
**Natural Resource Wastage**2%
*“Waste of time and money”*
### **Top return reasons **
**Brightness/Shine/Glow**31%
**Color**25%
**Size-Overall**15%
**Bulb Flicker/Dimming/Color**9%
**Functionality-Overall**5%
**Compatibility-Overall**3%
**Advertised Vs Actual Product**3%
**Quality-Overall**3%
**Defective Material/Parts**1%
**Rusts/Corrodes**1%
## **Common questions**
- **Is 100 watt bayonet light bulbs profitable to sell on Amazon United Kingdom?**
- The niche generates £116K/yr across 20 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -53.5%. Flapen's verdict: Skip it (43/100).
- **How competitive is the 100 watt bayonet light bulbs niche?**
- 13 brands and 35 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 71% of demand.
- **What do buyers complain about in 100 watt bayonet light bulbs?**
- Top complaints mined from reviews: Brightness/Shine/Glow, Quality-Overall, Bulb Flicker/Dimming/Color. The return rate is 1.5%.
- **When does demand for 100 watt bayonet light bulbs peak?**
- Demand peaks in Jan–Feb–Oct–Nov–Dec; the busiest month runs 3.7× the quietest.
- **What does it cost to enter the 100 watt bayonet light bulbs niche?**
- Listings span £4.98–£12.86; the average listing price is £8.25 (sweet spot $15–$100). The average incumbent carries 711 reviews — the moat a new listing must climb.
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