Is 40w bayonet light bulbs profitable to sell on Amazon United Kingdom?

The niche generates £19K/yr across 13 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -46.3%. Flapen's verdict: Skip it (30/100).

How competitive is the 40w bayonet light bulbs niche?

10 brands and 34 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in 40w bayonet light bulbs?

Top complaints mined from reviews: Brightness/Shine/Glow, Durability, Quality-Overall. The return rate is 1.4%.

When does demand for 40w bayonet light bulbs peak?

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

What does it cost to enter the 40w bayonet light bulbs niche?

Listings span £4.72–£10.98; the average listing price is £6.21 (sweet spot $15–$100). The average incumbent carries 1,285 reviews — the moat a new listing must climb.

40w bayonet light bulbs

Skip it

Prices mostly outside the sweet spot ($4.72–$10.98) — this niche doesn't clear our bar today.

Returns

Great1.4%

return rate — above 5% kills the launch gate

Conversion

Great8.2%

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

Review moat

Good1,285

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay82%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Competition

Bad77%

top-5 click share — a locked-up shelf

Avg price

Bad£6.21

avg listing price — sweet spot $15–$100

Market size

Bad£19K

£19K/yr · 37K searches

Growth

Bad-46.3%

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

Price range

Bad£4.72–£10.98

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

According to Flapen's Amazon United Kingdom niche tracking, 40w bayonet light bulbs is a £19K/yr Amazon United Kingdom market (37K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Jan–Feb–Oct–Nov–Dec. Verdict: Skip it — 30/100.

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

40w bayonet light bulbs market data

Units sold / yr: 4K–5K; avg 250–500/product
Revenue / yr: £25K–£31K; units × avg price
Conversion rate: 8.2%
Avg BSR: #865
Page quality: 0%
Prime: 92%
Sponsored: 62%
Out of stock: 13.6%
Avg brand age: 47 months
Avg seller age: 206 days

Competition & brand share

The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 falling

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

77%

Top 20: 100%

Open market

13%

Lepro39%
Linkind16%
EvaStary11%
Vanke9%
Energizer7%
HYLITE5%
Open — no brand owns it (4 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 84 weeks — -46.3% search growth over the last 90 days.

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

Open Trend

Top 40w bayonet light bulbs search terms

40w bayonet light bulbs12K/yr -56.6%8.4% conv.
40 watt bayonet light bulbs8K/yr -41.3%9.4% conv.
bayonet light bulb 40w4K/yr -43.0%13.0% conv.
40w light bulbs4K/yr -31.4%2.4% conv.
light bulb 40w4K/yr -48.4%6.7% conv.
light bulbs bayonet 40w3K/yr -37.1%11.9% conv.
bayonet light bulb 40w warm white2K/yr -39.6%16.0% conv.

All search terms

Top 40w 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Lepro G45 Bayonet Light Bulb 4.9W=40W Warm White 2700K 470lm Pack of 6

Lepro£7.644.6★3,455 rev

Linkind Bayonet Light Bulb 40w Equivalent Warm White 2700K 4.9W 470lm B22d LED Bulbs G45 Golf Ball Energy Saving Bulbs Non-Dimmable 4 Pack

Linkind£6.264.8★48 rev

Bayonet Light Bulbs B22 LED Bulb Bayonet 40W Equivalent Warm White 4Pack

EvaStary£5.934.5★323 rev

Energizer Candle 4.5W 40W Replacement LED Bulb 4 Pack (Warm White B22) ENGS14331 [Energy Class F]

Energizer£5.344.6★348 rev

Vanke B22 Candle Light Bulb 6W(40W Equivalent) Warm White 2700K 3-Pack

Vanke£5.074.5★746 rev

Newest

by launch date

HYLITE 4.9W G45 Low Energy LED Bulb 2 Pack - 450 Lumen Warm White 3000K Small Round Light - 40W Equivalent B22 Bayonet Cap - Energy Saving Instant Full Brightness No Flicker Long Life

HYLITE£5.7850 rev

10mo ago

PHILIPS B22 LED Light Bulb GLS 4.2W 470 Lumens Warm White 2700K 6 Pack

PHILIPS£10.9814 rev

10mo ago

Linkind Bayonet Light Bulb 40w Equivalent Warm White 2700K 4.9W 470lm B22d LED Bulbs G45 Golf Ball Energy Saving Bulbs Non-Dimmable 4 Pack

Linkind£6.2648 rev

1y ago

Unibulb BC B22 Bayonet LED Light Bulb 470 Lumens 2700K Warm White Replaces 40W Non-Dimmable 25yr Lifespan Pack of 3

Unibulb£5.9885 rev

1y ago

Lepro Bayonet Light Bulb 8.5W=60W 806lm Warm White 2700K Pack of 3

Lepro£5.379,168 rev

2y ago

What buyers say about 40w bayonet light bulbs

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

What buyers love

Brightness/Shine/Glow30%

“provide a good light”

Advertised Vs Actual Product18%

“Just what I needed”

Value For Money17%

“Great value”

Quality-Overall15%

“arrived when expected, as described and good quality”

Bulb Flicker/Dimming/Color5%

“Its a pack of bulbs and they work”

Size-Overall4%

“They fit and they work”

Durability2%

“Lifespan seems good”

Efficiency2%

“works well”

Temperature Control1%

“Perfect brightness and temp”

Design-Overall1%

“Stylish, easy to assemble and delivered next day”

What buyers complain about

Brightness/Shine/Glow22%

“Not very bright”

Durability17%

“Didnt last long”

Quality-Overall11%

“Poor product”

Color11%

“Not a warm white”

Bulb Flicker/Dimming/Color6%

“It is not dimmable so will not be used as touch light”

Value For Money6%

“Expensive mistake”

Warmth6%

“these ones barely gets warm”

Size-Overall4%

“The bulb is small”

Top return reasons

Size-Overall57%

Color9%

Brightness/Shine/Glow8%

Functionality-Overall7%

Bulb Flicker/Dimming/Color5%

Compatibility-Overall5%

Advertised Vs Actual Product2%

Defective Material/Parts1%

Warmth1%

Mounting0%

Common questions

Is 40w bayonet light bulbs profitable to sell on Amazon United Kingdom?: The niche generates £19K/yr across 13 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -46.3%. Flapen's verdict: Skip it (30/100).
How competitive is the 40w bayonet light bulbs niche?: 10 brands and 34 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in 40w bayonet light bulbs?: Top complaints mined from reviews: Brightness/Shine/Glow, Durability, Quality-Overall. The return rate is 1.4%.
When does demand for 40w bayonet light bulbs peak?: Demand peaks in Jan–Feb–Oct–Nov–Dec; the busiest month runs 3.0× the quietest.
What does it cost to enter the 40w bayonet light bulbs niche?: Listings span £4.72–£10.98; the average listing price is £6.21 (sweet spot $15–$100). The average incumbent carries 1,285 reviews — the moat a new listing must climb.