12v 5a power supply
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Great10.3%search→purchase rate — share of searches ending in a sale
Review moat
Good1,114.13avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Returns
Okay3.5%return rate — above 5% kills the launch gate
Avg price
Okay$10.44avg listing price — sweet spot $15–$100
Market size
Bad$96K$96K/yr · 90K searches
Growth
Bad-1.7%90-day search growth — must beat 0% to launch
Competition
Bad90%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Price range
Bad$7.81–$12.92cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 12v 5a power supply is a $96K/yr Amazon United States market (90K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 31/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
12v 5a power supply market data
- Units sold / yr
- 13K–15K
- avg 1,000–1,250/product
- Revenue / yr
- $131K–$157K
- units × avg price
- Conversion rate
- 10.3%
- Avg BSR
- #8
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 63%
- Out of stock
- 0.0%
- Avg brand age
- 52 months
- Avg seller age
- 207 days
Competition & brand share
The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 falling
Sellers
8
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
90%
Top 20: 100%
Open market
0%
- ALITOVE52%
- SANSUN27%
- Gilivier13%
- Velainwom5%
- HYGAMOCC3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -1.7% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top 12v 5a power supply search terms
- 12v 5a power supply43K/yr
- 12v 5a power adapter10K/yr
- 12v 5 amp power supply6K/yr
- 12v 5a+ power supply3K/yr
- 12v 5a5K/yr
- 12v 5amp power supply5K/yr
- 12 volt 5 amp power supply5K/yr
- 12v power supply 5a4K/yr
- 12v 5a dc power supply3K/yr
- 12v 60w power supply3K/yr
Top 12v 5a 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 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
ALITOVE DC 12V 5A Power Supply Adapter Converter Transformer 60W AC 100-240V Input with 5.5x2.5mm DC Output Jack for 5050 3528 LED Strip Module Light
ALITOVE$12.854.5★4,489 rev
12V 5A Power Supply AC 120V to DC12V 5.5x2.1mm Jack Converter 12 Volt LED Driver 60W Adapter Transformer for Strip Lights Surveillance Cameras External HDD Monitor CCTV (Pack of 1)
SANSUN$9.744.5★2,249 rev
12V 5A Power Supply Universal Adapter AC 100-240V to DC 12Volt 5A 4A 3.5A 3A Power Cord with 10 Tips (5.5x2.5mm/4.8x1.7mm) for LED Strip Lights CCTV Cameras Router Modem & More
Gilivier$9.834.3★103 rev
12V 5A Power Supply Adapter AC100-240V to DC12V Converter Transformer with 5.5x2.5mm DC Output Jack for LED Strip Light Wireless Router ADSL Cats Security Cameras
Velainwom$9.734.3★1,101 rev
ALITOVE 12V DC Power Supply 5A AC Adapter 100-240V to 12 Volt Transformer 5 Amp 4A 3A 6.2FT 12V Power Supply Cord 5.5 x 2.5mm with Wiring Terminal for LED Light CCTV Security Camera PC Monitor Router
ALITOVE$12.924.2★71 rev
Newest
by launch date
12V 5A Power Supply Universal AC Adapter 5.5x2.5mm Plug 100-240V to DC 12V
Gilivier$7.9326 rev
ALITOVE 12V DC Power Supply 5A AC Adapter 100-240V to 12 Volt Transformer 5 Amp 4A 3A 6.2FT 12V Power Supply Cord 5.5 x 2.5mm with Wiring Terminal for LED Light CCTV Security Camera PC Monitor Router
ALITOVE$12.9271 rev
12V 5A Power Supply Universal Adapter AC 100-240V to DC 12Volt 5A 4A 3.5A 3A Power Cord with 10 Tips (5.5x2.5mm/4.8x1.7mm) for LED Strip Lights CCTV Cameras Router Modem & More
Gilivier$9.83103 rev
HYGAMOCC 12V 5A Power Supply 5 Amp AC/DC Adapter Converter 100-240v 5.5x2.5mm DC Output Jack for DVR NVR Security Cameras System CCTV Accessories Routers
HYGAMOCC$7.8118 rev
12V 5A Power Supply Adapter AC100-240V to DC12V Converter Transformer with 5.5x2.5mm DC Output Jack for LED Strip Light Wireless Router ADSL Cats Security Cameras
Velainwom$9.731,101 rev
Trending
90-day click momentum12V 5A Power Supply Adapter AC100-240V to DC12V Converter Transformer with 5.5x2.5mm DC Output Jack for LED Strip Light Wireless Router ADSL Cats Security Cameras
Velainwom$9.734.3★
12V 5A Power Supply Universal AC Adapter 5.5x2.5mm Plug 100-240V to DC 12V
Gilivier$7.934.7★
ALITOVE 12V DC Power Supply 5A AC Adapter 100-240V to 12 Volt Transformer 5 Amp 4A 3A 6.2FT 12V Power Supply Cord 5.5 x 2.5mm with Wiring Terminal for LED Light CCTV Security Camera PC Monitor Router
ALITOVE$12.924.2★
ALITOVE DC 12V 5A Power Supply Adapter Converter Transformer 60W AC 100-240V Input with 5.5x2.5mm DC Output Jack for 5050 3528 LED Strip Module Light
ALITOVE$12.854.5★
HYGAMOCC 12V 5A Power Supply 5 Amp AC/DC Adapter Converter 100-240v 5.5x2.5mm DC Output Jack for DVR NVR Security Cameras System CCTV Accessories Routers
HYGAMOCC$7.814.6★
What buyers say about 12v 5a power supply
What buyers praise and complain about, mined from review topics.What buyers love
“Worked and delivered as advertised”
“Great quality, durable, and very easy to connect and use”
“Good for the price”
“It powers all the cameras with no problem”
“this is indeed the correct charger”
“Worked, hasnt broke”
“the connector fit”
“The compatibility, the size and weight of the device are nice”
“has the correct barrel plug”
“Does the job”
What buyers complain about
“Does not last”
“Did not work”
“Poor quality construction”
“Can't handle a 4 amp load died within an hour of use”
“Either way, it does not fit in my DVR plug”
“Not worth it”
“Very disappointed in this power supply”
“This evening I heard a loud POP”
“Starting coming apart near the connection”
“It does get warm after a little bit of use”
Top return reasons
Common questions
- Is 12v 5a power supply profitable to sell on Amazon United States?
- The niche generates $96K/yr across 8 tracked products. 90-day search growth is -1.7%. Flapen's verdict: Skip it (31/100).
- How competitive is the 12v 5a power supply niche?
- 5 brands and 8 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in 12v 5a power supply?
- Top complaints mined from reviews: Durability, Functionality-Overall, Quality-Overall. The return rate is 3.5%.
- When does demand for 12v 5a power supply peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the 12v 5a power supply niche?
- Listings span $7.81–$12.92; the average listing price is $10.44 (sweet spot $15–$100). The average incumbent carries 1,114 reviews — the moat a new listing must climb.