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100v 延長コード

Maybe

An estimated 0.4% of orders come back. But products sell for $939.20 on average, outside the sweet spot, so 100v 延長コード is a Maybe.

Flapen Score
55
55 / 100
Ranks 2,433 of 4,191 DIY・工具・ガーデン niches · −2 vs the category median of 57
Market size
¥947K/yr38K searches / yr
90-day growth
+1.8%search demand this quarter
Competition
36%top-5 click share · 17 brands · 87 sellers

Flapen Score

100v 延長コード against its category

The dotted line is the DIY・工具・ガーデン average. Past it, 100v 延長コード is stronger. Inside it, weaker.

55Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The 100v 延長コード market on Amazon at a glance

Shoppers on Amazon Japan searched for 100v 延長コード 38K times last year and spent an estimated ¥947K. The top 5 brands take 72% of clicks. Demand peaks in Feb–Nov. Flapen scores it 55 out of 100, a Maybe.

01 · Demand

An estimated 2.6% of those searches ended in a purchase.

Shoppers searched for this 38K times in the last 12 months. That counts every search on Amazon Japan for this niche's terms. An estimated 2.6% of those searches ended in a purchase. Searches in the last 90 days moved +1.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated ¥947K a year.

Searches, last 12 months
38K
Growth, 90 days vs prior 90
+1.8%
Conversion, latest week
2.6%
Market size, estimated
¥947Ka year
Peak month
February1.7× the quietest month
Top search term
100v 延長コード13K searches a year

02 · Price

A sale here is worth ¥939.20.

Listings sell for ¥939.20 on average, from ¥372.86 to ¥2716.09. Amazon reports units sold in ranges. This niche sold 1K to 2K a year. The average listing sells 0 to 100 of them. At ¥939.20 that is ¥0 to ¥94K a year per listing.

Average price
¥939.20above the $15 to $100 sweet spot
Price range
¥372.86–¥2716.09
Amazon Japan median price
¥1942.07across 14,733 niches
Units sold a year
1K–2K
Units per listing a year
0–100
Revenue per listing a year
¥0–¥94K
Returns
0.4%of orders · Amazon Japan median 0.4%

03 · Entry bar

The bar here is reviews.

73% of listings pay for placement with sponsored ads. 85% ship with Prime. On an average day, 1.2% of listings are out of stock. The average listing ranks #33 within 電設. It carries 2,445 reviews at 4.36 stars, so a new listing needs social proof before a better product.

Sponsored listings
73%
Prime listings
85%
Out of stock, average day
1.2%
Average rank
#33in 電設
Average rating
4.36 starsAmazon Japan average 4.15 stars
Average reviews
2,445per listing
Listings tracked
40

04 · Newcomers

4 of last year's 7 launches cleared the first-year sales bar.

7 products launched here in the last 12 months. 4 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 49 months on average, so the names here are settling in.

Launched, last 12 months
7
Successful launches
4Amazon's first-year sales bar
Average brand age
49 months

Products

Top 100v 延長コード 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 31, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 36% of clicks, no more. An open shelf where new products get seen.

¥0¥38K¥76K¥114K¥151K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

17 falling

Sellers

87

Est. top-5 brand share

72%

Top 20: 100%

Est. top-5 click share

36%

Top 20: 79%

Open market

23%

  • エレコム(ELECOM)28%
  • サンワサプライ(Sanwa Supply)20%
  • AKIRARI13%
  • オーム(OHM)6%
  • 宏和工業5%
  • KOTUBAME5%

Demand

100v 延長コード search demand

Weekly searches over the year, seasonality beneath. Pick a range.

2K1KSpike '25Black Friday '25Spike '26Prime Day '26JulAugSepOctNovDecJanFebMarAprMayJunJul

Peak months: Feb, Nov · busiest ÷ quietest = 1.7×

Search terms

Top 100v 延長コード search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • 100v 延長コード13K/yr
  • 電源延長ケーブル7K/yr
  • 電源ケーブル 延長7K/yr
  • 1500w 延長コード6K/yr
  • 延長プラグ6K/yr

Reviews and returns

What reviews say buyers love and hate about 100v 延長コード

We read the reviews and the return reasons for every product selling here.

27%of positive reviews mention “使用の容易さ”
14%of negative reviews mention “総合品質”
0.4%of orders come back
“ゴミ”
A buyer, on “総合品質”14% of negative reviews mention the same topic

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.

20 topics

NegativePositive

FAQ

Common 100v 延長コード 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