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solarkoffer

Worth a look

Shows a thin review moat (313 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 27Growth 76Conversion 7Competition 80Returns 66Price range 20Avg price 60Brand share 77Review moat 84Quality gap 75

Review moat

Great313.41

avg incumbent reviews — the moat a new listing must climb

Competition

Great35%

top-5 click share — an open shelf

Brand share

Great58%

top-5 brand share — no brand owns this niche

Growth

Great+61.4%

90-day search growth — must beat 0% to launch

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Returns

Good2.4%

return rate — above 5% kills the launch gate

Avg price

Good€146.10

avg listing price — sweet spot $15–$100

Market size

Okay€112K

€112K/yr · 130K searches

Price range

Bad€34.77–€363.93

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Bad0.6%

search→purchase rate — share of searches ending in a sale

According to Flapen's Amazon Germany niche tracking, solarkoffer is a €112K/yr Amazon Germany market (130K searches/yr). The top 5 brands hold 58% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 58/100.

Data updated Jul 12, 2026 · scored weekly · How we score niches

solarkoffer market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
€73K–€110K
units × avg price
Conversion rate
0.6%
Avg BSR
#79
Page quality
0%
Prime
73%
Sponsored
86%
Out of stock
12.9%
Avg brand age
29 months
Avg seller age
193 days

Competition & brand share

Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.

Brands

26 falling

Sellers

56

Top-5 brand share

58%

Top 20: 97%

Top-5 click share

35%

Top 20: 75%

Open market

37%

  • DOKIO25%
  • ECO-WORTHY12%
  • VDL9%
  • MHPOWOS6%
  • Yinleader6%
  • Ecosonique Technology5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +61.4% search growth over the last 90 days.
8K6KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May, Jun, Jul · busiest ÷ quietest = 3.1×

Top solarkoffer search terms

  • solartasche26K/yr
  • solarpanel faltbar 200w15K/yr
  • solarpanel 200w faltbar9K/yr
  • solartasche 200 watt9K/yr
  • solarpanel faltbar 12v7K/yr
  • faltbares solarpanel 200w8K/yr
  • solarkoffer10K/yr
  • mobile solaranlage für wohnmobil8K/yr
  • 200w solarpanel faltbar5K/yr
  • 200 watt solarpanel faltbar4K/yr
All search terms

Top solarkoffer 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.

0%3%€3K6%€7K9%€10K12%€13K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about solarkoffer

What buyers praise and complain about, mined from review topics.

What buyers love

Qualität insgesamt23%

“***** Best produckt”

Aufladen11%

“Handy, Laptop und Powerbank werden sehr schnell geladen”

Preis-Leistungs-Verhältnis10%

“Super-Produkt zum Super-Preis”

beworben Vs Tatsächliches Produkt9%

“Tut was er soll”

Benutzerfreundlichkeit6%

“Einfache Handhabung”

Portabilität5%

“Transportable Solargenerator funktioniert gut für Kleinigkeiten”

Effizienz5%

“Läuft super”

Stärke4%

“Sehr robust”

Montage/Installation3%

“Installation einfach”

Gewicht leicht3%

“Gewicht ist gut”

What buyers complain about

Aufladen18%

“Ab heute den 19.06.2026 gibt es keinen Strom mehr an die Ladestation ab”

Haltbarkeit12%

“Nach 2 Monaten defekt”

Qualität insgesamt10%

“Qualitätsproblem”

Funktionalität insgesamt8%

“Funktioniert nicht”

Preis-Leistungs-Verhältnis6%

“Müll war und doppelt so teuer”

beworben Vs Tatsächliches Produkt4%

“Schade eigentlich dass die Angaben fehlerhaft ausfallen”

Gewicht schwer3%

“Etwas sperrig”

Montage/Installation3%

“Ruck-Zuck aufgebaut und mit den Steckerverbindungen angeschlossen”

Gesamtgröße3%

“Lädt gut etwas zu gross”

Akkulaufzeit2%

“die Batterie hat teilweise eher Ladung verloren (ohne das etwas angeschlossen war).”

Top return reasons

Aufladen18%
Gesamtgröße16%
Funktionalität insgesamt14%
Kompatibilität – insgesamt10%
Defekt Material/Teile9%
Gewicht schwer4%
Konnektivität – insgesamt3%
Produktzustand3%
Stärke3%
Qualität insgesamt2%

Common questions

Is solarkoffer profitable to sell on Amazon Germany?
The niche generates €112K/yr across 51 tracked products. 14 of 14 products launched in the last 360 days are still selling. 90-day search growth is +61.4%. Flapen's verdict: Worth a look (58/100).
How competitive is the solarkoffer niche?
26 brands and 56 sellers compete. The top 5 products take 35% of clicks and top 5 brands hold 58% of demand.
What do buyers complain about in solarkoffer?
Top complaints mined from reviews: Aufladen, Haltbarkeit, Qualität insgesamt. The return rate is 2.4%.
When does demand for solarkoffer peak?
Demand peaks in May–Jun–Jul; the busiest month runs 3.1× the quietest.
What does it cost to enter the solarkoffer niche?
Listings span €34.77–€363.93; the average listing price is €146.10 (sweet spot $15–$100). The average incumbent carries 313 reviews — the moat a new listing must climb.