300 Watt Inverter
FailThe top 5 brands take 94% of clicks, so 300 Watt Inverter is a Fail.
- Flapen Score
- 41 / 100Ranks 5,810 of 7,287 Automotive niches · −8 vs the category median of 4941
- Market size
- $116K/yr78K searches / yr
- 90-day growth
- +8.5%search demand this quarter
- Competition
- 60%top-5 click share · 9 brands · 17 sellers
Flapen Score
300 Watt Inverter against its category
The dotted line is the Automotive average. Past it, 300 Watt Inverter is stronger. Inside it, weaker.
Market
The 300 Watt Inverter market on Amazon at a glance
Shoppers on Amazon United States searched for 300 Watt Inverter 78K times last year and spent an estimated $116K. The top 5 brands take 94% of clicks. Flapen scores it 41 out of 100, a Fail.
01 · Demand
An estimated 4.3% of those searches ended in a purchase.
Shoppers searched for this 78K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.3% of those searches ended in a purchase. Searches in the last 90 days moved +8.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $116K a year.
- Searches, last 12 months
- 78K
- Growth, 90 days vs prior 90
- +8.5%
- Conversion, latest week
- 4.3%
- Market size, estimated
- $116Ka year
- Peak month
- August1.4× the quietest month
- Top search term
- bestek17K searches a year
02 · Price
A sale here is worth $34.94.
Listings sell for $34.94 on average, from $18.83 to $69.04. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 100 to 250 of them. At $34.94 that is $3K to $9K a year per listing.
- Average price
- $34.94inside the $15 to $100 sweet spot
- Price range
- $18.83–$69.04
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $3K–$9K
- Returns
- 4.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
95% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.5% of listings are out of stock. The average listing ranks #272 within Jump Starters, Battery Chargers & Portable Power. It carries 5,049 reviews at 4.43 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 95%
- Prime listings
- 100%
- Out of stock, average day
- 1.5%
- Average rank
- #272in Jump Starters, Battery Chargers & Portable Power
- Average rating
- 4.43 starsAmazon United States average 4.42 stars
- Average reviews
- 5,049per listing
- Listings tracked
- 22
04 · Newcomers
3 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 3 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 43 months on average, so the names here are settling in.
- Launched, last 12 months
- 3
- Successful launches
- 3Amazon's first-year sales bar
- Average brand age
- 43 months
Products
Top 300 Watt Inverter 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 12, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
BESTEK Power Inverter DC 12V to AC 110V - 300W Car Plug Adapter Outlet with 4.8A Dual USB Fast Charging Port - Car Charger Cigarette Lighter Adapter for Phone Laptop on Road Trip - Aluminum Housing
- Price
- $24.72
- Rating
- 4.5/5
- Reviews
- 33,840
- Age
- 15y ago

BESTEK Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter 4.8A Dual USB Fast Charging Ports for Phone Laptop CPAP - Black
- Price
- $40.30
- Rating
- 4.5/5
- Reviews
- 5,624
- Age
- 7y ago

300W Portable Charger Car Power Inverters for Vehicle
- Price
- $23.82
- Rating
- 4.5/5
- Reviews
- 1,166
- Age
- 1y ago

DC 12V to AC120V Pure sine Wave Power Inverter 300W with Dual sockets Output and DC 5V 2Amp USB Output. Ideal for Most Small Power appliances. (300W) Blue
- Price
- $36.66
- Rating
- 4.2/5
- Reviews
- 162
- Age
- 6y ago

BESTEK 300W Pure Sine Wave Power Inverter - DC 12V to 110V AC Car Converter Plug Adapter Outlet with PD30W USB-C Fast Charger Vehicle Cigarette Lighter Adapter for Laptop
- Price
- $43.38
- Rating
- 4.4/5
- Reviews
- 239
- Age
- 2y ago
Trending
estimated 90-day click momentum
Bestek 500W Pure Sine Wave Power Inverter with PD30W & QC18W Inverter DC 12V to AC 110V for Solar RV Truck Outdoor Power Inverter with Dual AC to Camping Road Trips
- Price
- $69.04
- Rating
- 4.6/5
- Reviews
- 167
- Age
- 3mo ago

BESTEK 220V to 110V Converter 300W AC Voltage Converter US to Europe with 2 USB-C (PD20w) Step Down Power Converter for European Travel (EU/UK/AU/JP/India/South Africa 5 Universal Plug Adapter)
- Price
- $35.35
- Rating
- 4.4/5
- Reviews
- 4,937
- Age
- 6mo ago

E-POLAR 300W Car Power Inverter Pure Sine Wave with 60W PD USB-C Power Inverters for Vehicles DC 12V to 110V AC Car Inverter Power Outlet with XT60 Cable (Grey)
- Price
- $33.56
- Rating
- 4.1/5
- Reviews
- 95
- Age
- 2y ago

ALLWEI 300W Power Inverter 12V DC to 110V AC Car Inverter with 27W PD USB-C &18W USB-A Fast Charging Car Charger Cigarette Lighter Adapter for Phone Laptop and Small Devices on Road Trip-Red
- Price
- $23.61
- Rating
- 4.4/5
- Reviews
- 8,031
- Age
- 7y ago

300W Car Power Inverter 12V DC to 110V AC Outlet Adapter 4 Fast USB Ports with PD 36W QC3.0 LCD Voltage Display Stackable Design for Laptop CPAP Road Trip Essentials
- Price
- $36.95
- Rating
- 4.4/5
- Reviews
- 3,083
- Age
- 11mo ago
Newest
by launch date
Bestek 500W Pure Sine Wave Power Inverter with PD30W & QC18W Inverter DC 12V to AC 110V for Solar RV Truck Outdoor Power Inverter with Dual AC to Camping Road Trips
- Price
- $69.04
- Rating
- 4.6/5
- Reviews
- 167
- Age
- 3mo ago

BESTEK 220V to 110V Converter 300W AC Voltage Converter US to Europe with 2 USB-C (PD20w) Step Down Power Converter for European Travel (EU/UK/AU/JP/India/South Africa 5 Universal Plug Adapter)
- Price
- $35.35
- Rating
- 4.4/5
- Reviews
- 4,937
- Age
- 6mo ago

300W Car Power Inverter 12V DC to 110V AC Outlet Adapter 4 Fast USB Ports with PD 36W QC3.0 LCD Voltage Display Stackable Design for Laptop CPAP Road Trip Essentials
- Price
- $36.95
- Rating
- 4.4/5
- Reviews
- 3,083
- Age
- 11mo ago

BESTEK 300W Car Power Inverter - DC 12V to 110V AC Car Plug Adapter with 30W USB-C & 18W USB-A Dual AC Outlet Fast Car Charger Adapter for Laptop Vehicles Road Trip Essentials
- Price
- $25.05
- Rating
- 4.5/5
- Reviews
- 3,349
- Age
- 1y ago

300W Car Voltage Converter Inverter DC 12V to AC 110V Ports Fast Charging Car Charger with Cigarette Lighter Plug with 2 Sockets and 4 USB for Business Trips and Vacation
- Price
- $18.83
- Rating
- 4.2/5
- Reviews
- 24
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 60% of clicks. Leaders hold, but buyers still shop past them.
Brands
9 falling
Sellers
17
Est. top-5 brand share
94%
Top 20: 100%
Est. top-5 click share
60%
Top 20: 99%
Open market
4%
- BESTEK72%
- YSOLX9%
- Fit4Less7%
- ALLWEI3%
- KirkasVue3%
- DrimMek2%
- Open — no brand owns it (3 brands, 4%)
Demand
300 Watt Inverter search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Search terms
Top 300 Watt Inverter search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- bestek17K/yr
- 300 watt inverter16K/yr
- 300w power inverter7K/yr
- 300w inverter7K/yr
- 300 watt pure sine wave inverter5K/yr
- 300w pure sine wave inverter4K/yr
- bestek inverter6K/yr
- 300w car power inverter5K/yr
- bestek power inverter4K/yr
- 300 watt inverter pure sine wave2K/yr
Reviews and returns
What reviews say buyers love and hate about 300 Watt Inverter
We read the reviews and the return reasons for every product selling here.
“Did not work”
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.
18 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 300 Watt Inverter 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









