12v 3a Power Supply
FailThe top 5 products take 91% of clicks, so 12v 3a Power Supply is a Fail.
- Flapen Score
- 33 / 100Ranks 7,120 of 8,347 Electronics niches · −10 vs the category median of 4333
- Market size
- $104K/yr81K searches / yr
- 90-day growth
- -0.6%search demand this quarter
- Competition
- 91%top-5 click share · 7 brands · 10 sellers
Flapen Score
12v 3a Power Supply against its category
The dotted line is the Electronics average. Past it, 12v 3a Power Supply is stronger. Inside it, weaker.
Market
The 12v 3a Power Supply market on Amazon at a glance
Shoppers on Amazon United States searched for 12v 3a Power Supply 81K times last year and spent an estimated $104K. The top 5 brands take 93% of clicks. Flapen scores it 33 out of 100, a Fail.
01 · Demand
An estimated 12.2% of those searches ended in a purchase.
Shoppers searched for this 81K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 12.2% of those searches ended in a purchase. Searches in the last 90 days moved -0.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $104K a year.
- Searches, last 12 months
- 81K
- Growth, 90 days vs prior 90
- -0.6%
- Conversion, latest week
- 12.2%
- Market size, estimated
- $104Ka year
- Peak month
- January1.2× the quietest month
- Top search term
- 12v 3a power supply29K searches a year
02 · Price
A sale here is worth $10.55.
Listings sell for $10.55 on average, from $7.39 to $16.27. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 1,000 to 1,250 of them. At $10.55 that is $11K to $13K a year per listing.
- Average price
- $10.55under the $15 to $100 sweet spot
- Price range
- $7.39–$16.27
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 10K–13K
- Units per listing a year
- 1,000–1,250
- Revenue per listing a year
- $11K–$13K
- Returns
- 4.1%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
88% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #2 within Power Accessories. It carries 1,432 reviews at 4.50 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 88%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #2in Power Accessories
- Average rating
- 4.50 starsAmazon United States average 4.42 stars
- Average reviews
- 1,432per listing
- Listings tracked
- 8
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 50 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 50 months
Products
Top 12v 3a Power Supply products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 22, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Facmogu DC 12V 3A Power Adapter 100-240V AC to DC 12V 3A 36W Power Suppy with Barrel Connector 5.5x2.5mm & 5.5x2.1mm 12 Volt 3 Amp Desktop Adpater 12V Switching Transformer AC/DC Power Converter
- Price
- $10.10
- Rating
- 4.5/5
- Reviews
- 3,662
- Age
- 9y ago

ALITOVE 12V DC Power Supply 3A 36W Universal AC Adapter 100-240V 50-60hz to 12 Volt Power Adapter Cord 3Amp 2.5A 2A 5.5mm x 2.5mm 2.1mm for LED Strip Light CCTV Security Camera PC Monitor and More
- Price
- $9.92
- Rating
- 4.5/5
- Reviews
- 1,154
- Age
- 7y ago

12V 3A AC Adapter Power Supply
- Price
- $9.88
- Rating
- 4.5/5
- Reviews
- 404
- Age
- 6y ago

Arkare 12V 3A Power Supply Adapter 36W ac/dc Charger AC 100V-240V to DC 12Volt 3amp Power Cord 12V 2.5A 2A 1.5A 1A 800mA 500mA for Security Camera BT Speaker GPS Webcam Microphone Receiver with 10TIPS
- Price
- $10.01
- Rating
- 4.3/5
- Reviews
- 507
- Age
- 4y ago

Aclorol 12V 3A Power Supply Adapter 36W 100V-240V AC to DC 12Volts Converter Adapter Transformer 3amp 2.8A2.5A2A1.5A 5.5x2.5mm 2.1mm for WS2811 12V LED Strip Light Wireless Router ADSL Cats IP Camera
- Price
- $7.95
- Rating
- 4.5/5
- Reviews
- 137
- Age
- 4y ago
Trending
estimated 90-day click momentum![[UL Listed] Chanzon 12V 3A 36W Power Supply AC DC Switching Adapter](https://m.media-amazon.com/images/I/51waU8wrDzL.jpg)
[UL Listed] Chanzon 12V 3A 36W Power Supply AC DC Switching Adapter
- Price
- $16.27
- Rating
- 4.6/5
- Reviews
- 1,023
- Age
- 7y ago

ALITOVE 12V DC Power Supply 3A 36W Universal AC Adapter 100-240V 50-60hz to 12 Volt Power Adapter Cord 3Amp 2.5A 2A 5.5mm x 2.5mm 2.1mm for LED Strip Light CCTV Security Camera PC Monitor and More
- Price
- $9.92
- Rating
- 4.5/5
- Reviews
- 1,154
- Age
- 7y ago

Aclorol 12V 3A Power Supply Adapter 36W 100V-240V AC to DC 12Volts Converter Adapter Transformer 3amp 2.8A2.5A2A1.5A 5.5x2.5mm 2.1mm for WS2811 12V LED Strip Light Wireless Router ADSL Cats IP Camera
- Price
- $7.95
- Rating
- 4.5/5
- Reviews
- 137
- Age
- 4y ago

Facmogu DC 12V 3A Power Adapter 100-240V AC to DC 12V 3A 36W Power Suppy with Barrel Connector 5.5x2.5mm & 5.5x2.1mm 12 Volt 3 Amp Desktop Adpater 12V Switching Transformer AC/DC Power Converter
- Price
- $10.10
- Rating
- 4.5/5
- Reviews
- 3,662
- Age
- 9y ago

12V 3A AC Adapter Power Supply
- Price
- $9.88
- Rating
- 4.5/5
- Reviews
- 404
- Age
- 6y ago
Newest
by launch date
12V 3A Power Supply ac Adapter DC12Volts 3Amps 2A 1A 500mA Power Adapter 5.5mmx2.5mm/2.1mm Plug DC12V Charger Inverter Transformer
- Price
- $7.39
- Rating
- 4.6/5
- Reviews
- 79
- Age
- 2y ago

Arkare 12V 3A Power Supply Adapter 36W ac/dc Charger AC 100V-240V to DC 12Volt 3amp Power Cord 12V 2.5A 2A 1.5A 1A 800mA 500mA for Security Camera BT Speaker GPS Webcam Microphone Receiver with 10TIPS
- Price
- $10.01
- Rating
- 4.3/5
- Reviews
- 507
- Age
- 4y ago

Aclorol 12V 3A Power Supply Adapter 36W 100V-240V AC to DC 12Volts Converter Adapter Transformer 3amp 2.8A2.5A2A1.5A 5.5x2.5mm 2.1mm for WS2811 12V LED Strip Light Wireless Router ADSL Cats IP Camera
- Price
- $7.95
- Rating
- 4.5/5
- Reviews
- 137
- Age
- 4y ago

12V 3A AC Adapter Power Supply
- Price
- $9.88
- Rating
- 4.5/5
- Reviews
- 404
- Age
- 6y ago

ALITOVE 12V DC Power Supply 3A 36W Universal AC Adapter 100-240V 50-60hz to 12 Volt Power Adapter Cord 3Amp 2.5A 2A 5.5mm x 2.5mm 2.1mm for LED Strip Light CCTV Security Camera PC Monitor and More
- Price
- $9.92
- Rating
- 4.5/5
- Reviews
- 1,154
- Age
- 7y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 91% of clicks. A locked shelf that new listings rarely crack.
Brands
7 falling
Sellers
10
Est. top-5 brand share
93%
Top 20: 100%
Est. top-5 click share
91%
Top 20: 100%
Open market
3%
- Facmogu38%
- ALITOVE23%
- LitStar13%
- Arkare12%
- Aclorol7%
- GuanTing5%
- Open — no brand owns it (1 brand, 3%)
Demand
12v 3a Power Supply search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.2×
Search terms
Top 12v 3a Power Supply search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 12v 3a power supply29K/yr
- 12v 3a+ power supply11K/yr
- 12v 3a power adapter9K/yr
- 12v 3 amp power supply6K/yr
- 12v 3a5K/yr
- power adapter (12v - 3a)4K/yr
- 12 volt 3 amp power supply4K/yr
- 12v 3amp dc power supply4K/yr
- 12v/3a power supply3K/yr
- dc 12v 3a power cord3K/yr
Reviews and returns
What reviews say buyers love and hate about 12v 3a Power Supply
We read the reviews and the return reasons for every product selling here.
“mess with the cord for it to charge”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 12v 3a Power Supply questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









