Is 12v power supply profitable to sell on Amazon United Kingdom?

The niche generates £142K/yr across 43 tracked products. 0 of 13 products launched in the last 360 days are still selling. 90-day search growth is -16.1%. Flapen's verdict: Worth a look (55/100).

How competitive is the 12v power supply niche?

31 brands and 34 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 45% of demand.

What do buyers complain about in 12v power supply?

Top complaints mined from reviews: Heating, Functionality-Overall, Size-Overall. The return rate is 3.3%.

When does demand for 12v power supply peak?

Demand peaks in Dec; the busiest month runs 1.6× the quietest.

What does it cost to enter the 12v power supply niche?

Listings span £3.99–£37.00; the average listing price is £9.28 (sweet spot $15–$100). The average incumbent carries 201 reviews — the moat a new listing must climb.

12v power supply

Worth a look

Shows no brand lock-in (top 5 brands take 45% of clicks), but soft demand (-16.1% this quarter) keeps it on the watch list.

Brand share

Great45%

top-5 brand share — no brand owns this niche

Review moat

Great201.3

avg incumbent reviews — the moat a new listing must climb

Competition

Great37%

top-5 click share — an open shelf

Conversion

Good6.5%

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

Price range

Good£3.99–£37.00

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Returns

Okay3.3%

return rate — above 5% kills the launch gate

Market size

Okay£142K

£142K/yr · 237K searches

Avg price

Okay£9.28

avg listing price — sweet spot $15–$100

Growth

Bad-16.1%

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

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, 12v power supply is a £142K/yr Amazon United Kingdom market (237K searches/yr). The top 5 brands hold 45% of demand. Demand peaks in Dec. Verdict: Worth a look — 55/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

12v power supply market data

Units sold / yr: 15K–20K; avg 250–500/product
Revenue / yr: £139K–£186K; units × avg price
Conversion rate: 6.5%
Avg BSR: #160
Page quality: 0%
Prime: 100%
Sponsored: 88%
Out of stock: 2.2%
Avg brand age: 31 months
Avg seller age: 191 days

Competition & brand share

Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.

Brands

31 flat

Sellers

Top-5 brand share

45%

Top 20: 92%

Top-5 click share

37%

Top 20: 81%

Open market

49%

SZZKtech13%
shefor12%
Yisica8%
inShareplus6%
Multibao6%
Lighting EVER6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.1% search growth over the last 90 days.

Peak months: Dec · busiest ÷ quietest = 1.6×

Open Trend

Top 12v power supply search terms

12v power supply142K/yr -23.6%3.8% conv.
12v dc power supply21K/yr +0.4%5.1% conv.
12 volt power supply14K/yr -18.6%2.8% conv.
12v adapter12K/yr +5.7%2.3% conv.
12v power adapter9K/yr -3.6%3.8% conv.
12v dc power adapter4K/yr +30.6%5.3% conv.
12v psu6K/yr +8.5%3.5% conv.
12v ac adapter5K/yr -18.5%6.0% conv.
dc12v power supply3K/yr +8.9%6.9% conv.
power adapter 12v4K/yr -7.6%3.5% conv.

All search terms

Top 12v power supply 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

12V 3A 36W Power Supply Cable Adapter Compatible With LED Monitor Camera

shefor£6.754.6★303 rev

SZZKtech 12v ac adapter power supply charger with 8 DC plug tips ac to dc12v 2a 1.5a 1a 800ma 600ma 500ma 400ma 200ma 100ma power cord 12volt converter inverter ac-dc adapter

SZZKtech£6.634.4★409 rev

Yisica 12V 2A Power Supply for LED Strip Lights 100-240V AC to DC 12V Converter Adapter Driver Transformer 24W UK Plug with 1.5M Cable 5.5mm x 2.1mm Jack

Yisica£5.144.5★15 rev

Multibao AC DC 12V 5A 60W Power Supply Adapter Charger Transformer with DC 5.5x2.1mm / 5.5x2.5mm Plug For LED CCTV 3 Pin UK Plug

Multibao£8.964.4★202 rev

Lepro 12V 2A Power Supply 240V to 12V Adapter Driver 5.5mm x 2.1mm Jack

Lighting EVER£7.344.5★2,255 rev

Newest

by launch date

12V 2A Power Supply AC Adapter 100-240V to 12V 2A DC Power Cable UK Plug Driver Transformer Universal Charger Cable 5.5mm x 2.1mm Jack for LED Strip Lights Router CCTV Camera Monitor

Oumida£4.883 rev

2mo ago

Yisica 12V 2A Power Supply for LED Strip Lights 100-240V AC to DC 12V Converter Adapter Driver Transformer 24W UK Plug with 1.5M Cable 5.5mm x 2.1mm Jack

Yisica£5.1415 rev

7mo ago

12V1A Power Supply Adapter AC 110-240V to DC 12V1A 50/60Hz DC Adapter for Router Set-Top Box Surveillance LED Alarm Monitor Fiber Optic Modem Universal 5.5mmx2.5/2.1mm(Central positive+) (Black 1PC)

LBXIUINKDUAA£4.245 rev

7mo ago

12V 2A Power Supply Adapter AC Adapter 100-240V to 12v DC Power Adapter 5.5mm x 2.1mm Jack for LED Strip Lights Router CCTV Camera Monitor Etc

MEETTIKEY£5.6120 rev

10mo ago

12V 1A Power Supply Adapter AC 100240V to DC 12V Transformer

VUOHOEG£6.3021 rev

1y ago

What buyers say about 12v power supply

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

What buyers love

Quality-Overall22%

“Brilliant quality”

Advertised Vs Actual Product17%

“As advertised”

Value For Money13%

“Good value for money”

Charging7%

“Charger”

Ease Of Use5%

“ease of use”

Socket/Port/Plug4%

“I like that it comes with 8 different plug tips because it removes the frustration of having the right power”

Connectivity-Overall4%

“plenty of connection options”

Size-Overall3%

“Fit perfectly”

Heating3%

“Ive not noticed any overheating or performance issues”

Portability3%

“spot on really handy bit of kit”

What buyers complain about

Heating11%

“Very hot to touch”

Functionality-Overall10%

“Doesnt work”

Size-Overall7%

“is too long for some devices”

Noise Level7%

“Loud”

Charging7%

“Blew my circuit board on my hand held led light bar would rather got the money out for a original charger as now Im down a £50 torch plus what I payed for the charger”

Quality-Overall7%

“rubbish product”

Durability5%

“broke after 2 years still decent though”

Instructions/User Manual/Troubleshooting4%

“Instructions need to be better”

Compatibility-Overall4%

“Wont work on powerful cinematic cameras”

Advertised Vs Actual Product3%

“The title is misleading”

Top return reasons

Size-Overall29%

Compatibility-Overall22%

Functionality-Overall15%

Charging12%

Defective Material/Parts6%

Connectivity-Overall3%

Amplification2%

Add-Ons/Attachments2%

Advertised Vs Actual Product2%

Socket/Port/Plug1%

Common questions

Is 12v power supply profitable to sell on Amazon United Kingdom?: The niche generates £142K/yr across 43 tracked products. 0 of 13 products launched in the last 360 days are still selling. 90-day search growth is -16.1%. Flapen's verdict: Worth a look (55/100).
How competitive is the 12v power supply niche?: 31 brands and 34 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 45% of demand.
What do buyers complain about in 12v power supply?: Top complaints mined from reviews: Heating, Functionality-Overall, Size-Overall. The return rate is 3.3%.
When does demand for 12v power supply peak?: Demand peaks in Dec; the busiest month runs 1.6× the quietest.
What does it cost to enter the 12v power supply niche?: Listings span £3.99–£37.00; the average listing price is £9.28 (sweet spot $15–$100). The average incumbent carries 201 reviews — the moat a new listing must climb.