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ソーラーパネル 400w
Worth a lookShows a $17.5M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size
Incredible¥17.5M¥17.5M/yr · 109K searches
Review moat
Incredible47.64avg incumbent reviews — the moat a new listing must climb
Returns
Great1.3%return rate — above 5% kills the launch gate
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Competition
Good41%top-5 click share — leaders hold, buyers still browse
Brand share
Good73%top-5 brand share — brands hold most of the demand
Growth
Bad-5.8%90-day search growth — must beat 0% to launch
Conversion
Bad0.5%search→purchase rate — share of searches ending in a sale
Avg price
Bad¥34150.68avg listing price — sweet spot $15–$100
Price range
Bad¥7719.36–¥75614.21cheapest to priciest tracked listing — scored on the share inside $15–$100