Is 9v power supply profitable to sell on Amazon United Kingdom?

The niche generates £61K/yr across 20 tracked products. 0 of 5 products launched in the last 360 days are still selling. 90-day search growth is -19.4%. Flapen's verdict: Skip it (45/100).

How competitive is the 9v power supply niche?

20 brands and 23 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 65% of demand.

What do buyers complain about in 9v power supply?

Top complaints mined from reviews: Functionality-Overall, Noise Level, Advertised Vs Actual Product. The return rate is 3.1%.

When does demand for 9v power supply peak?

Demand peaks in Jan–Dec; the busiest month runs 1.9× the quietest.

What does it cost to enter the 9v power supply niche?

Listings span £5.27–£10.96; the average listing price is £7.15 (sweet spot $15–$100). The average incumbent carries 216 reviews — the moat a new listing must climb.

9v power supply

Skip it

Prices mostly outside the sweet spot ($5.27–$10.96) — this niche doesn't clear our bar today.

Conversion

Incredible12.5%

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

Review moat

Great215.6

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Brand share

Good65%

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

Returns

Okay3.1%

return rate — above 5% kills the launch gate

Competition

Okay65%

top-5 click share — leaders hold, buyers still browse

Avg price

Bad£7.15

avg listing price — sweet spot $15–$100

Market size

Bad£61K

£61K/yr · 68K searches

Growth

Bad-19.4%

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

Price range

Bad£5.27–£10.96

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

According to Flapen's Amazon United Kingdom niche tracking, 9v power supply is a £61K/yr Amazon United Kingdom market (68K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 45/100.

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

9v power supply market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: £43K–£57K; units × avg price
Conversion rate: 12.5%
Avg BSR: #53
Page quality: 0%
Prime: 100%
Sponsored: 90%
Out of stock: 19.7%
Avg brand age: 34 months
Avg seller age: 240 days

Competition & brand share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 falling

Sellers

Top-5 brand share

65%

Top 20: 100%

Top-5 click share

65%

Top 20: 100%

Open market

31%

iLitLuk26%
SONICAKE15%
yimeizhiguang9%
JOYO8%
NGUIT6%
BakeWhiz4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -19.4% search growth over the last 90 days.

Peak months: Jan, Dec · busiest ÷ quietest = 1.9×

Open Trend

Top 9v power supply search terms

9v power supply31K/yr -28.2%8.1% conv.
9v dc power supply13K/yr +5.1%8.0% conv.
dc 9v power supply5K/yr -9.1%9.6% conv.
9v power supply guitar pedal6K/yr -21.9%14.6% conv.
9v guitar pedal power supply4K/yr -15.5%11.1% conv.
9v charger3K/yr -22.8%4.9% conv.
9v adapter3K/yr -14.3%6.1% conv.
9 volt power supply3K/yr -31.0%11.7% conv.

All search terms

Top 9v 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 20 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

iLitLuk 9V DC 1A Pedal Power Supply Adapter Center Negative Sleeve Positive Polarity One Spot Charging Adaptor PSU Switching Adapter Transformer Wall Charger for Guitar Effects Pedals Stompbox

iLitLuk£7.744.4★636 rev

SONICAKE Guitar Pedal Power Supply Adapter 9V DC 1000mA 1A for Most Guitar Bass Effect Pedal 9V DC Center Negative

SONICAKE£7.724.4★1,201 rev

Guitar Pedal Power Supply 9V DC Adapter with 2M Cable - Centre Negative Guitar Effects Pedal Power Adapter for Guitar Bass Stompbox & 9V Keyboards - Noise Reduction & Stable Current

yimeizhiguang£5.273.3★5 rev

JOYO DC 9V Guitar Pedal Power Supply (800mA -1A) AC Wall Charger Adapter with 4 Way Daisy Chain Pedal Cables (8.8 FT) Compatible for Most Effect Pedals (Tip Negative)

JOYO£10.964.5★485 rev

9V DC 1A Guitar Pedal Power Supply Adapter Center Negative Sleeve Positive 9V 1A Wall Charger Adaptor for Most Guitar Bass Effects Pedal Stompbox Noise Reduction

NGUIT£5.703.1★26 rev

Newest

by launch date

Guitar Pedal Power Supply 9V DC Adapter with 2M Cable - Centre Negative Guitar Effects Pedal Power Adapter for Guitar Bass Stompbox & 9V Keyboards - Noise Reduction & Stable Current

yimeizhiguang£5.275 rev

5mo ago

9V 2A Guitar Pedal Power Supply AC Adapter 100-240V 50 60Hz to DC 24W 5.5x2.1mm Transformer UK Plug for BOSS ME-80 ME-25 PSA-120S DS-1 RC-1 GT-1 DD-3 DD-7 FRV-1 Effects Pedals

Wufaa£5.4410 rev

6mo ago

[Polarity Reversible] 9V 2A power supply Ac adapter DC9V 2a 1.5a 1a 500ma 400mA 200ma 100ma power adapter charger 9 volt inverter transformer for label maker guitar pedals radios keyboards

SZZKtech£6.8521 rev

10mo ago

9V 1A Universal Power Adapter Supply with 8 Interchangeable Tips Guitar Pedal Power Supply Universal Charger with Multiple Heads AC/DC Charger for Electric Cars Routers Keyboards Audio Devices

CeoxThao£6.6032 rev

11mo ago

9V 1A Guitar Pedal Power Supply DC 6.56ft Charging Adapter for Guitar Bass

MDLSDE£6.378 rev

11mo ago

What buyers say about 9v power supply

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

What buyers love

Advertised Vs Actual Product22%

“It does the job”

Quality-Overall15%

“Excellent product”

Value For Money15%

“Great value for money”

Compatibility-Overall9%

“It's compatible with my pedals”

Ease Of Use4%

“Easy to use”

Functionality-Overall4%

“Works wonderfully for all my pedals”

Size-Overall3%

“The cable is a good length. about 2 metres”

Battery Life2%

“a very handy item to have for your guitar effects pedal--this is better than just the 9volt battery which also operates the pedal unit--the battery will fade--not much good if using the effects pedal at a gig or even at home”

Charging2%

“this has attachments to fit many items that need charging”

Strength2%

“Stable Power Supply”

What buyers complain about

Functionality-Overall24%

“then stopped working”

Noise Level14%

“Excessive Buzzing”

Advertised Vs Actual Product9%

“Inaccurate product description”

Quality-Overall9%

“Poor quality”

Durability6%

“Broke when pulling out of socket”

Amplification4%

“constant humming noise coming from the amplifier when plugged in”

Connectivity-Overall3%

“Very good, just didn't have my connection”

Size-Overall3%

“short”

Metal Quality3%

“Plastic earth pin broken on receipt”

Ease Of Use3%

“Cannot use this”

Top return reasons

Functionality-Overall28%

Compatibility-Overall23%

Size-Overall19%

Defective Material/Parts8%

Charging7%

Connectivity-Overall4%

Advertised Vs Actual Product2%

Noise Level2%

Socket/Port/Plug2%

Amplification1%

Common questions

Is 9v power supply profitable to sell on Amazon United Kingdom?: The niche generates £61K/yr across 20 tracked products. 0 of 5 products launched in the last 360 days are still selling. 90-day search growth is -19.4%. Flapen's verdict: Skip it (45/100).
How competitive is the 9v power supply niche?: 20 brands and 23 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 65% of demand.
What do buyers complain about in 9v power supply?: Top complaints mined from reviews: Functionality-Overall, Noise Level, Advertised Vs Actual Product. The return rate is 3.1%.
When does demand for 9v power supply peak?: Demand peaks in Jan–Dec; the busiest month runs 1.9× the quietest.
What does it cost to enter the 9v power supply niche?: Listings span £5.27–£10.96; the average listing price is £7.15 (sweet spot $15–$100). The average incumbent carries 216 reviews — the moat a new listing must climb.