12v 1a power supply
Skip itA small market ($61K/yr) — this niche doesn't clear our bar today.
Conversion
Great11.3%search→purchase rate — share of searches ending in a sale
Review moat
Good1,187.82avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Price range
Okay$5.43–$21.87cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$10.12avg listing price — sweet spot $15–$100
Returns
Bad5.1%return rate — above 5% kills the launch gate
Growth
Bad-3.4%90-day search growth — must beat 0% to launch
Competition
Bad73%top-5 click share — a locked-up shelf
Market size
Bad$61K$61K/yr · 53K searches
According to Flapen's Amazon United States niche tracking, 12v 1a power supply is a $61K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in Dec. Verdict: Skip it — 38/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
12v 1a power supply market data
- Units sold / yr
- 6K–8K
- avg 250–500/product
- Revenue / yr
- $61K–$81K
- units × avg price
- Conversion rate
- 11.3%
- Avg BSR
- #4
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 88%
- Out of stock
- 4.1%
- Avg brand age
- 52 months
- Avg seller age
- 216 days
Competition & brand share
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.Brands
15 falling
Sellers
16
Top-5 brand share
77%
Top 20: 100%
Top-5 click share
73%
Top 20: 100%
Open market
18%
- ALITOVE31%
- GuanTing16%
- FlickerStar15%
- MTDZKJG8%
- SoulBay7%
- Facmogu5%
Demand & seasonality
Weekly Amazon search volume, last 103 weeks — -3.4% search growth over the last 90 days.Peak months: Dec · busiest ÷ quietest = 1.6×
Top 12v 1a power supply search terms
- 12v 1a power supply25K/yr
- 12v 1a power adapter8K/yr
- 12v 1 amp power supply6K/yr
- 12v 1amp power supply4K/yr
- dc 12v 1a power cord4K/yr
- 12v 1000ma power supply3K/yr
- 12 volt 1 amp power supply3K/yr
Top 12v 1a 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.
All 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
ALITOVE DC 12V 1A Power Supply 12W AC Adapter 100~240V 50-60hz to 12 Volt 1Amp 0.5A Transformer DC 12V Power Cord 5.5 x 2.5mm 2.1mm Plug for LED Strip Light CCTV Security Camera and More
ALITOVE$6.974.4★2,039 rev
DC12V Power Supply 1A 12V AC Adapter with 11 Changeable DC Plug Tips AC100-240V to DC12V 1000mA 800mA 600mA 500mA 400mA 200mA 100mA Charger Replacement 6FT
GuanTing$7.444.3★266 rev
![12V 1A Adapter Power Supply [12 Volts 1 Amps] 100V~240V AC to DC Plug 5.5 x 2.1mm & 2.5mm for 12volt 100mA 200mA 300mA 400mA 500mA 600mA 800mA 900mA 1000mA Equipment Extra Long 6ft Cord](https://m.media-amazon.com/images/I/31eSt-oJOQS.jpg)
12V 1A Adapter Power Supply [12 Volts 1 Amps] 100V~240V AC to DC Plug 5.5 x 2.1mm & 2.5mm for 12volt 100mA 200mA 300mA 400mA 500mA 600mA 800mA 900mA 1000mA Equipment Extra Long 6ft Cord
FlickerStar$9.864.4★488 rev
12V 1A Power Supply 12W AC/DC Adapter 100-240V AC to DC 12Volt 1000mA 800mA 500mA 200mA Power Converter Transformer for CCTV Camera Router Speaker Webcam
MTDZKJG$5.434.6★114 rev
SoulBay 12V 1A AC Adapter Charger Replacement w/8 Tips Regulated Power Supply Cord for LED Strip Light CCTV Camera BT Speaker GPS Webcam Router DC12V Transformer with ETL Certificate
SoulBay$9.724.2★6,052 rev
Newest
by launch date
ALITOVE 12V DC Power Supply 1A 12W AC Adapter 100-240V 50-60hz to 12 Volt 1Amp 0.5A Transformer Power Cord 6.5FT 5.5 x 2.5mm 2.1mm Plug with 14 Tips for LED Strip Light CCTV Security Camera and More
ALITOVE$11.0753 rev
DC12V Power Supply 1A 12V AC Adapter with 11 Changeable DC Plug Tips AC100-240V to DC12V 1000mA 800mA 600mA 500mA 400mA 200mA 100mA Charger Replacement 6FT
GuanTing$7.44266 rev
Minidodoca 2 Pack 12V 1A AC/DC Power Supply - 100-240V AC to DC 12V 1A Power Adapter with 5.5x2.5mm & 5.5x2.1mm DC Plug
minidodoca$9.9786 rev
MTYTOT 12V 1A Power Supply 12W AC Adapter DC 12V 1A Replacement Power Cord 100V-240V AC to DC Converter 12 Volt 1Amp 0.5A Power Adapter ac/dc Transformer 5.5mm x 2.5mm /2.1mm DC Output Wall Adapter
MTYTOT$5.85138 rev
Govvep 12V 1A 12W Adapter Power Supply
Govvep$9.5581 rev
Trending
90-day click momentumGovvep 12V 1A 12W Adapter Power Supply
Govvep$9.554.6★
ALITOVE 12V DC Power Supply 1A 12W AC Adapter 100-240V 50-60hz to 12 Volt 1Amp 0.5A Transformer Power Cord 6.5FT 5.5 x 2.5mm 2.1mm Plug with 14 Tips for LED Strip Light CCTV Security Camera and More
ALITOVE$11.074.3★
Minidodoca 2 Pack 12V 1A AC/DC Power Supply - 100-240V AC to DC 12V 1A Power Adapter with 5.5x2.5mm & 5.5x2.1mm DC Plug
minidodoca$9.974.5★
12V 1A Adapter Power Supply [12 Volts 1 Amps] 100V~240V AC to DC Plug 5.5 x 2.1mm & 2.5mm for 12volt 100mA 200mA 300mA 400mA 500mA 600mA 800mA 900mA 1000mA Equipment Extra Long 6ft Cord
FlickerStar$9.864.4★
ALITOVE 12V 1A Power Supply AC Adapter 100-240V 50-60Hz to DC 12 Volt Transformer 12W Replacement Power Cord 5.5 x 2.5mm/2.1mm Tip for CCTV Security Camera DVR NVR System Router LED Strip (5 Pack)
ALITOVE$18.914.4★
What buyers say about 12v 1a power supply
What buyers praise and complain about, mined from review topics.What buyers love
“as advertised”
“Worth the price”
“Universal AC/DC Adapte”
“Good Quality”
“Best gosh dang 12V1A Barrel charger”
“Fits great”
“It even comes with a wire connector”
“it's been great to use”
“Works great with my laptop cooling pad”
“Perfect for my hard drives power supply”
What buyers complain about
“Failed after 4 months”
“They never worked”
“The build quality seems very poor”
“it's wasn't compatible”
“the plugin itself does get quite warm”
“Not good charging adapter”
“It doesn't have all fittings I tried”
“it began having connection issues — the light would flicker on”
“CAUSED A FIRE”
“not likely to be adequate of your device requires the full amp this supply is claimed to supply”
Top return reasons
Common questions
- Is 12v 1a power supply profitable to sell on Amazon United States?
- The niche generates $61K/yr across 17 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -3.4%. Flapen's verdict: Skip it (38/100).
- How competitive is the 12v 1a power supply niche?
- 15 brands and 16 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 77% of demand.
- What do buyers complain about in 12v 1a power supply?
- Top complaints mined from reviews: Durability, Functionality-Overall, Quality-Overall. The return rate is 5.1% — above our launch gate.
- When does demand for 12v 1a power supply peak?
- Demand peaks in Dec; the busiest month runs 1.6× the quietest.
- What does it cost to enter the 12v 1a power supply niche?
- Listings span $5.43–$21.87; the average listing price is $10.12 (sweet spot $15–$100). The average incumbent carries 1,188 reviews — the moat a new listing must climb.