400 Watt Solar Panel
400 Watt Solar Panel shows a thin review moat (157 avg reviews), but prices mostly outside the sweet spot ($184.69–$2336.07) keeps it on the watch list.
Flapen Score
Ranks 4,843 of 8,839 Patio, Lawn & Garden niches · −2 vs the category median of 56
Is 400 Watt Solar Panel profitable on Amazon?
According to Flapen's Amazon United States niche tracking, 400 Watt Solar Panel is a $1.2M/yr Amazon United States market (882K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Jul. Verdict: Worth a look — 54/100.
400 Watt Solar Panel: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved +24.9% over the last 90 days and 0.3% of searches end in a purchase.
$1.2M
revenue / yr
Who owns the niche?
The top 5 brands hold 63% of demand, so 37% of the market is open.
37%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.
0/100
page quality · 52 products
Top 400 Watt Solar Panel products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
DOKIO Monocrystalline Solar Panel Size 400W 31V for 12/24V Devices Aluminum Frame 3m Cable Pre-Drilled Holes for Yard Garden Shed Off-Grid Power
- Price
- $227.51
- Rating
- 4.2/5
- Reviews
- 474
- Age
- 2y ago
Callsun N-Type 16BB 400W Bifacial Solar Panel 2Pcs 200 Watt Solar Panel for 12V/24V Systems 25% High Efficiency Dual-Module Parallel Anti-Shade Design for RV Van Marine Home Rooftop Off-Grid
- Price
- $299.71
- Rating
- 4.7/5
- Reviews
- 204
- Age
- 1y ago
JJN Bifacial 425 Watt Solar Panel N-Type UL 61730 16BB Solar Panels 25% High Efficiency Monocrystalline Solar Module for 12V/24V/48V PV System for Homes Rooftop Farm RV and Off-Grid Applications
- Price
- $254.23
- Rating
- 4.6/5
- Reviews
- 473
- Age
- 2y ago
ZOUPW 450W Portable Solar Panel 38V N-Type 16BB 25% High Efficiency Foldable Solar Charger for EcoFlow Delta/Anker C1000/Jackery/Bluetti Elite 100 IP68 Waterproof for Offgrid RV Power Backup
- Price
- $459.12
- Rating
- 4.6/5
- Reviews
- 311
- Age
- 1y ago
DOKIO 400W 31V Mono Solar Panel - Works for 12V/24V Systems Equipped with 9.84ft MC4 Wiring Perfect for Gardens Courtyards Greenhouses Sheds Terraces & Off-Grid Battery Charging
- Price
- $239.02
- Rating
- 4.1/5
- Reviews
- 437
- Age
- 1y ago
Trending
90-day click momentum
JJN UL61730 425W N-Type Bifacial Solar Panel 16BB Monocrystalline Up to 25% Efficiency for 12V/24V/48V On-Grid & Off-Grid Systems Rooftop Home Farm Energy Storage Charging Station
- Price
- $261.97
- Rating
- 4.6/5
- Reviews
- 14
- Age
- 4mo ago
1000 Watt Flexible Solar Panel 2pcs 500W Solar Panel for RV Camping Boat Off Grid Home Lightweight Monocrystalline Photovoltaic Panels with Controller
- Price
- $265.93
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 4mo ago
Callsun 450W Bifacial Solar Panel 2-Pack (900W Total) N-Type 16BB Monocrystalline Double-Glass Anti-Shade Dual-Module Design 25% Conversion Efficiency for Home Rooftops RVs Off-Grid Systems
- Price
- $721.36
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 4mo ago
AeternaSol 400 watt Solar Panel 2pcs 200W Bifacial Solar Panel 18V 18BB N-Type Monocrystalline Solar Module IP68 25% High-Efficiency Solar Panels for Off Grid RV Boat Trailer Camper (Bifacial 200W*2)
- Price
- $214.62
- Rating
- 3.7/5
- Reviews
- 13
- Age
- 7y ago
Renogy ShadowFlux Solar Panels N-Type Anti-Shading Panels for 12V/24V Systems with 25% High-Efficiency PV Modules 200W ShadowFlux N-Type Panel
- Price
- $206.89
- Rating
- 4.3/5
- Reviews
- 277
- Age
- 1y ago
Newest
by launch dateCallsun 450W Bifacial Solar Panel 2-Pack (900W Total) N-Type 16BB Monocrystalline Double-Glass Anti-Shade Dual-Module Design 25% Conversion Efficiency for Home Rooftops RVs Off-Grid Systems
- Price
- $721.36
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 4mo ago
JJN UL61730 425W N-Type Bifacial Solar Panel 16BB Monocrystalline Up to 25% Efficiency for 12V/24V/48V On-Grid & Off-Grid Systems Rooftop Home Farm Energy Storage Charging Station
- Price
- $261.97
- Rating
- 4.6/5
- Reviews
- 14
- Age
- 4mo ago
1000 Watt Flexible Solar Panel 2pcs 500W Solar Panel for RV Camping Boat Off Grid Home Lightweight Monocrystalline Photovoltaic Panels with Controller
- Price
- $265.93
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 4mo ago
400W Portable Solar Panel for Power Station 24% High Efficiency Lightweight ETFE Foldable Solar Panel Charger MC4 Output IP65 Waterproof for Outdoor Camping RV Emergency Power Supply
- Price
- $359.42
- Rating
- 4.2/5
- Reviews
- 36
- Age
- 1y ago
EPOCH 430W Bifacial Solar Panels N-Type Class A 12/24 Volt Monocrystalline Solar Panel High-Efficiency Waterproof Solar Module for RV Camping Boat Marine Off-Grid
- Price
- $253.18
- Rating
- 4.5/5
- Reviews
- 63
- Age
- 1y ago
Competition: brands, sellers & click share
Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.
Brands
26 rising
Sellers
34
Top-5 brand share
63%
Top 20: 96%
Top-5 click share
33%
Top 20: 71%
Open market
32%
- DOKIO20%
- Renogy12%
- JJN12%
- Callsun11%
- ZOUPW8%
- Epoch5%
400 Watt Solar Panel demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jul · busiest ÷ quietest = 1.8×
Top 400 Watt Solar Panel search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- 400 watt solar panel234K/yr
- 400w solar panel99K/yr
- 500 watt solar panel71K/yr
- panel solar 500w41K/yr
- paneles solares de 500 watts36K/yr
- solar panels 400 watts61K/yr
- 500w solar panel39K/yr
- zoupw solar panel21K/yr
- 600 watt solar panel32K/yr
- callsun solar panel27K/yr
What reviews say buyers love and hate about 400 Watt Solar Panel
What buyers mention most, as a share of all reviews.
What buyers love
74% of reviews“solid quality”
“Worth every penny”
“Better than expected”
“Easy to install”
“very good even in light shade”
What buyers complain about
58% of reviews“Stopped working”
“bulky”
“And its very large”
“it will not put out a charge at all”
“Not as advertised”
400 Watt Solar Panel return rate & reasons
Why buyers send it back, as a share of all return requests.
4.0%
Return rate
39%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common 400 Watt Solar Panel questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
