g4 halogen bulbs
Worth a lookShows searches that convert (12.6% search→purchase), but soft demand (-43.6% this quarter) keeps it on the watch list.
Conversion
Incredible12.6%search→purchase rate — share of searches ending in a sale
Returns
Incredible1.0%return rate — above 5% kills the launch gate
Avg price
Incredible£45.89avg listing price — sweet spot $15–$100
Market size
Great£991K£991K/yr · 172K searches
Brand share
Good73%top-5 brand share — brands hold most of the demand
Review moat
Okay1,802.56avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Price range
Bad£2.49–£739.30cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-43.6%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, g4 halogen bulbs is a £991K/yr Amazon United Kingdom market (172K searches/yr). The top 5 brands hold 73% of demand. Demand peaks in Jan–Feb–Nov–Dec. Verdict: Worth a look — 53/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
g4 halogen bulbs market data
- Units sold / yr
- 30K–40K
- avg 2,000–2,500/product
- Revenue / yr
- £1.4M–£1.8M
- units × avg price
- Conversion rate
- 12.6%
- Avg BSR
- #36
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 89%
- Out of stock
- 0.0%
- Avg brand age
- 49 months
- Avg seller age
- 195 days
Competition & brand share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.Brands
15 rising
Sellers
32
Top-5 brand share
73%
Top 20: 100%
Top-5 click share
64%
Top 20: 100%
Open market
23%
- EVEREADY30%
- Levidon21%
- Haraqi10%
- Caldarax7%
- GMY5%
- Jaenmsa5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -43.6% search growth over the last 90 days.Peak months: Jan, Feb, Nov, Dec · busiest ÷ quietest = 2.9×
Top g4 halogen bulbs search terms
- g4 halogen bulbs77K/yr
- g4 bulb29K/yr
- g4 bulbs14K/yr
- g4 halogen bulbs 20w9K/yr
- g4 12v 20w led light bulbs 2 pin7K/yr
- 12v 20w bulb 2 pin6K/yr
- g4 20w 12v halogen capsule light bulbs4K/yr
- g4 light bulbs5K/yr
- g4 20w2K/yr
- 12v 20w halogen bulb3K/yr
Top g4 halogen 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.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Eveready G4 Halogen Light Bulbs 20W 12V 2-Pin Base Clear Capsule Warm White Dimmable 12-Pack
EVEREADY£5.384.7★485 rev

Levidon G4 Halogen Light Bulbs 20W 12V Clear Capsule 2 Pin Lamp Bulb Halogen Pin Base Warm White Dimmable 10 Pack
Levidon£4.974.5★8,648 rev

Haraqi 10 Pack G4 Halogen Bulbs 12 Volt 20 Watt Bi-Pin Halogen Bulbs
Haraqi£3.404.5★130 rev

2 x Eveready G4 20W 12V Halogen Capsule Light Bulbs Dimmable Lamps 240 Lumen 2000 Hours Life Clear Finish
EVEREADY£2.494.4★901 rev

GMY 12 Pack G4 Halogen Bulbs 12V 20W 2 Pin Capsule Light Bulbs Small Two Prong Push in Halogen Spotlight Bulbs for Cooker Hood Extractor Fan Bathroom Lava Lamp Downlight Kitchen Lamp
GMY£5.844.5★52 rev
Newest
by launch date
KUKIRIN G4 Electric Scooter for Adults 75km Long Range Foldable E Scooter 60V 20Ah Battery 11-Inch Tubeless Tyres Dual Disc Brakes Touch Display IP54 EN17128
Kukirin£739.306 rev

Wieyily G4 Halogen Light Bulbs 20W 12V G4 Oven Bulb Clear Capsule 2 Pin Lamp Bulbs Dimmable 300LM Warm White 2700K 300 Heat Tolerant for Oven/Microwave/Cooker Hood 4 Pack
Wieyily£3.5733 rev

Trubuyware G4 Halogen Bulbs 20W 12 Pack Halogen Light Bulbs 12V 20W Warm White 2700K Clear Capsule 2 Pin Lamp Bulb Dimmable for Cooker Hood Cabinet Table Lamps Ceiling Lights
Trubuyware£4.94114 rev

Eveready G4 Halogen Light Bulbs 20W 12V 2-Pin Base Clear Capsule Warm White Dimmable 12-Pack
EVEREADY£5.38485 rev

ETUOLMP MR16 Halogen Bulbs 12V 20W Durable 6 Packs High Output Halogen Light Bulbs 2 pin GU5.3 Base for Landscape Lights Track Lights Ceiling Lights Desk Lamps Dimmable 2700K Warm White
ETUOLMP£9.8284 rev
Trending
90-day click momentum
Wieyily G4 Halogen Light Bulbs 20W 12V G4 Oven Bulb Clear Capsule 2 Pin Lamp Bulbs Dimmable 300LM Warm White 2700K 300 Heat Tolerant for Oven/Microwave/Cooker Hood 4 Pack
Wieyily£3.574.8★

Comyan 10 Pieces G4 Halogen Light Bulbs 20W 12V Warm White 2800K Dimmable Clear Capsule
Comyan£5.364.5★

KUKIRIN G4 Electric Scooter for Adults 75km Long Range Foldable E Scooter 60V 20Ah Battery 11-Inch Tubeless Tyres Dual Disc Brakes Touch Display IP54 EN17128
Kukirin£739.304.6★

Caldarax 12 Pack G4 Halogen Light Bulbs 20W 12V Dimmable Clear Capsule 2 Pin Lamp Bulb 2700K Warm White 280 Lumen G4 Halogen Pin Base Bulbs for Ceiling Light Table Lamps Cabinet Lighting
Caldarax£4.684.5★

GMY 12 Pack G4 Halogen Bulbs 12V 20W 2 Pin Capsule Light Bulbs Small Two Prong Push in Halogen Spotlight Bulbs for Cooker Hood Extractor Fan Bathroom Lava Lamp Downlight Kitchen Lamp
GMY£5.844.5★
What buyers say about g4 halogen bulbs
What buyers praise and complain about, mined from review topics.What buyers love
“Great value”
“As Described”
“Excellent Product”
“Nice and bright”
“Fits well”
“Do the job nicely”
“Works really well, no flickering at all”
“Easy to work”
“Easy to install”
“Quality & Material”
What buyers complain about
“very short life”
“Bad light bulbs”
“Cheap”
“Small halogen bulbs”
“The light switch cost £40 so very expensive purchase”
“Dont work”
“Care with pins as one pin broke when i was installing it”
“Easy to break”
“The thread is not compatible with water bottles”
“A total waste of money”
Top return reasons
Common questions
- Is g4 halogen bulbs profitable to sell on Amazon United Kingdom?
- The niche generates £991K/yr across 18 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -43.6%. Flapen's verdict: Worth a look (53/100).
- How competitive is the g4 halogen bulbs niche?
- 15 brands and 32 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 73% of demand.
- What do buyers complain about in g4 halogen bulbs?
- Top complaints mined from reviews: Durability, Bulb Flicker/Dimming/Color, Quality-Overall. The return rate is 1.0%.
- When does demand for g4 halogen bulbs peak?
- Demand peaks in Jan–Feb–Nov–Dec; the busiest month runs 2.9× the quietest.
- What does it cost to enter the g4 halogen bulbs niche?
- Listings span £2.49–£739.30; the average listing price is £45.89 (sweet spot $15–$100). The average incumbent carries 1,803 reviews — the moat a new listing must climb.