12v power supply
Worth a lookShows a sweet-spot price point ($18.57 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Great$18.57avg listing price — sweet spot $15–$100
Market size
Great$1.3M$1.3M/yr · 1.0M searches
Price range
Great$5.43–$49.86cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good6.6%search→purchase rate — share of searches ending in a sale
Competition
Good45%top-5 click share — leaders hold, buyers still browse
Brand share
Good71%top-5 brand share — brands hold most of the demand
Review moat
Good1,225.91avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Returns
Okay3.7%return rate — above 5% kills the launch gate
Growth
Bad-7.2%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 12v power supply is a $1.3M/yr Amazon United States market (1.0M searches/yr). The top 5 brands hold 71% of demand. Verdict: Worth a look — 58/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
12v power supply market data
- Units sold / yr
- 60K–80K
- avg 2,000–2,500/product
- Revenue / yr
- $1.1M–$1.5M
- units × avg price
- Conversion rate
- 6.6%
- Avg BSR
- #35
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 91%
- Out of stock
- 0.0%
- Avg brand age
- 52 months
- Avg seller age
- 189 days
Competition & brand share
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.Brands
23 rising
Sellers
40
Top-5 brand share
71%
Top 20: 97%
Top-5 click share
45%
Top 20: 85%
Open market
26%
- ALITOVE40%
- Wefomey11%
- SANSUN10%
- VAYALT6%
- Jesverty4%
- LightingWill3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -7.2% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top 12v power supply search terms
- 12v power supply422K/yr
- 12 volt power supply171K/yr
- 12v dc power supply108K/yr
- 12v 2a power supply51K/yr
- 12v adapter40K/yr
- 12v power adapter38K/yr
- 12v ac adapter24K/yr
- 12v dc power adapter16K/yr
- 12 volt dc power supply19K/yr
- switching power supply22K/yr
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.
All 24 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
Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger 100V-240V AC to DC Converter with 14 Tips Polarity Converter and 4-Way Power Splitter Cable
Wefomey$18.024.5★613 rev
VAYALT DC 12V 50A 600W Switching Power Supply 110V/220V AC to DC Converter Universal Regulated Switching 12V Power Supply for CCTV Camera System 3D Printer LED Strip Computer Project
VAYALT$35.234.5★107 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
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
ALITOVE$9.924.5★1,154 rev
Newest
by launch date
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
VAYALT DC 12V 50A 600W Switching Power Supply 110V/220V AC to DC Converter Universal Regulated Switching 12V Power Supply for CCTV Camera System 3D Printer LED Strip Computer Project
VAYALT$35.23107 rev
Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger 100V-240V AC to DC Converter with 14 Tips Polarity Converter and 4-Way Power Splitter Cable
Wefomey$18.02613 rev
12V 2A Power Supply Adapter UL-Listed 120V AC to 12V DC Adapter Transformer 12 Volt 2 Amp 24W Wall Charger for LED Strip Lights Security Camera 5.5x2.1mm US Plug (5 Pack)
Wefomey$24.6779 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
Trending
90-day click momentum
NICE-POWER DC Power Supply Variable 0~30V 0~10A 3-Digits LED Display Current and Voltage Adjustable 150W Fixed with Encoder DC Bench Power Supply 15V 10A/30V 5A Electroplating DIY etc PSU
NICE-POWER$36.264.6★
Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger 100V-240V AC to DC Converter with 14 Tips Polarity Converter and 4-Way Power Splitter Cable
Wefomey$18.024.5★
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★
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★
VAYALT DC 12V 50A 600W Switching Power Supply 110V/220V AC to DC Converter Universal Regulated Switching 12V Power Supply for CCTV Camera System 3D Printer LED Strip Computer Project
VAYALT$35.234.5★
What buyers say about 12v power supply
What buyers praise and complain about, mined from review topics.What buyers love
“As advertised”
“Excellent product”
“GOOD PRICE”
“Good charger”
“Perfect fit”
“Works great with the CariPro cleaner”
“easy to use”
“compatible with a lot of 12vdv devices”
“Adjustable voltage solved many issues in my application”
“it seems durable”
What buyers complain about
“This is not durable at all”
“Did not work”
“The build quality seems very poor”
“Just didn't fit what I needed to charge”
“Small,”
“Misleading Image”
“Noisy”
“Unfortunately, this product didn't have the compatible tip for it”
“Did not work at all when plugged in”
“The connector is loose in the socket”
Top return reasons
Common questions
- Is 12v power supply profitable to sell on Amazon United States?
- The niche generates $1.3M/yr across 32 tracked products. 90-day search growth is -7.2%. Flapen's verdict: Worth a look (58/100).
- How competitive is the 12v power supply niche?
- 23 brands and 40 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 71% of demand.
- What do buyers complain about in 12v power supply?
- Top complaints mined from reviews: Durability, Functionality-Overall, Quality-Overall. The return rate is 3.7%.
- When does demand for 12v power supply peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the 12v power supply niche?
- Listings span $5.43–$49.86; the average listing price is $18.57 (sweet spot $15–$100). The average incumbent carries 1,226 reviews — the moat a new listing must climb.