12v 30a power supply
Worth a lookShows a sweet-spot price point ($29.06 avg), but soft demand (-5.9% this quarter) keeps it on the watch list.
Avg price
Incredible$29.06avg listing price — sweet spot $15–$100
Price range
Great$11.93–$69.36cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great299avg incumbent reviews — the moat a new listing must climb
Conversion
Good6.9%search→purchase rate — share of searches ending in a sale
Returns
Good2.2%return rate — above 5% kills the launch gate
Competition
Good50%top-5 click share — leaders hold, buyers still browse
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$92K$92K/yr · 46K searches
Growth
Bad-5.9%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 12v 30a power supply is a $92K/yr Amazon United States market (46K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Nov. Verdict: Worth a look — 50/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
12v 30a power supply market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- $116K–$145K
- units × avg price
- Conversion rate
- 6.9%
- Avg BSR
- #404
- Page quality
- 0%
- Prime
- 95%
- Sponsored
- 68%
- Out of stock
- 0.0%
- Avg brand age
- 53 months
- Avg seller age
- 207 days
Competition & brand share
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.Brands
11 rising
Sellers
51
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
50%
Top 20: 97%
Open market
13%
- MEAN WELL61%
- KAINSC PRODUCTS KAWAGUCH INDUSTRIAL SCIENTIFIC7%
- EnhanBili6%
- NVVV6%
- MYSWEETY4%
- SUPERNIGHT4%
- Open — no brand owns it (5 brands, 13%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -5.9% search growth over the last 90 days.Peak months: Nov · busiest ÷ quietest = 1.6×
Top 12v 30a power supply search terms
- meanwell 12v power supply23K/yr
- mean well 12v power supply8K/yr
- 12v 30a power supply7K/yr
- lrs-350-124K/yr
- 12v power supply 30a4K/yr
Top 12v 30a 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 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
MEAN WELL LRS-350-12 Switching Power Supply 348W 12V 29Amp Single Output (LRS Series 350W 12V) for LED Project
MEAN WELL$29.794.7★243 rev
Mean Well LRS-350-12 DC Switching Power Supply 12V 29A 350W for CCTV Computer Project 3D Printer LED Strip Light Router
MEAN WELL$31.324.7★349 rev
Mean Well LRS-350-12 AC/DC Switching Power Supply 348W 12V 29Amp Single Output Provided by KAINSC Products
KAINSC PRODUCTS KAWAGUCH INDUSTRIAL SCIENTIFIC$32.094.7★148 rev
Mean Well LRS-50-12 Single Output Switching Power Supply 12VDC 4.2A 50W
MEAN WELL$11.935.0★3 rev
Mean Well LRS-600-12 600W 12V 50A Switching Power Supply
EnhanBili$67.434.4★21 rev
Newest
by launch date
12V 30A 360W 110V AC to DC Regulated Universal Switching Power Supply Transformer Adapter LED Driver for LED Strip Lights CCTV Camera System CCTV Radio 3D Printer
CONPEX$23.7816 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
Mean Well LRS-50-12 Single Output Switching Power Supply 12VDC 4.2A 50W
MEAN WELL$11.933 rev
12V Power Supply 360W 30A AC to DC Converter 110v to 12v dc Power Supply Adjustable Universal Transformer for RV Radio/Car Stereos LED Strip CCTV Computer Project 3D Printer
MYSWEETY$38.76122 rev
Mean Well LRS-600-12 600W 12V 50A Switching Power Supply
EnhanBili$67.4321 rev
Trending
90-day click momentumMean Well LRS-50-12 Single Output Switching Power Supply 12VDC 4.2A 50W
MEAN WELL$11.935.0★
12V 30A 360W 110V AC to DC Regulated Universal Switching Power Supply Transformer Adapter LED Driver for LED Strip Lights CCTV Camera System CCTV Radio 3D Printer
CONPEX$23.784.1★
Mean Well GST60A12-P1J 12V 5 Amp 60W Regulated Switching Table Top Power
MEAN WELL$19.804.4★
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★
Mean Well LRS-150-12 150W Single Output Switchable Power Supply 12VDC 12.5A (LRS Series 150W 12V)
MEAN WELL$21.324.5★
What buyers say about 12v 30a power supply
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality power supply”
“Works as advertised”
“Great for the price”
“Works really well for my ham radio”
“Works great”
“Its really is a great power pack”
“The supply works fine”
“Built well and quiet”
“Worked great as a diesel heater power supply”
“reliable so I'm happy with this purchase”
What buyers complain about
“Died after 1 week”
“the fan noise makes this less than ideal”
“The regulation sucks”
“Low profile”
“The MeanWell doesnt get hot”
“It would probably be more expensive”
“Low watt charger”
“Defective”
“Not that I would run it at maximum capacity all the time”
“blew up causing a small fire”
Top return reasons
Common questions
- Is 12v 30a power supply profitable to sell on Amazon United States?
- The niche generates $92K/yr across 22 tracked products. 90-day search growth is -5.9%. Flapen's verdict: Worth a look (50/100).
- How competitive is the 12v 30a power supply niche?
- 11 brands and 51 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in 12v 30a power supply?
- Top complaints mined from reviews: Durability, Noise Level, Functionality-Overall. The return rate is 2.2%.
- When does demand for 12v 30a power supply peak?
- Demand peaks in Nov; the busiest month runs 1.6× the quietest.
- What does it cost to enter the 12v 30a power supply niche?
- Listings span $11.93–$69.36; the average listing price is $29.06 (sweet spot $15–$100). The average incumbent carries 299 reviews — the moat a new listing must climb.