3ピン 2ピン 変換
MaybeShoppers spend an estimated $7.3M a year here. But products sell for $546.43 on average, outside the sweet spot, so 3ピン 2ピン 変換 is a Maybe.
- Flapen Score
- 57 / 100Ranks 2,057 of 4,191 DIY・工具・ガーデン niches · on the category median57
- Market size
- ¥7.3M/yr141K searches / yr
- 90-day growth
- +3.8%search demand this quarter
- Competition
- 66%top-5 click share · 11 brands · 115 sellers
Flapen Score
3ピン 2ピン 変換 against its category
The dotted line is the DIY・工具・ガーデン average. Past it, 3ピン 2ピン 変換 is stronger. Inside it, weaker.
Market
The 3ピン 2ピン 変換 market on Amazon at a glance
Shoppers on Amazon Japan searched for 3ピン 2ピン 変換 141K times last year and spent an estimated ¥7.3M. The top 5 brands take 85% of clicks. Demand peaks in Dec. Flapen scores it 57 out of 100, a Maybe.
01 · Demand
An estimated 9.5% of those searches ended in a purchase.
Shoppers searched for this 141K times in the last 12 months. That counts every search on Amazon Japan for this niche's terms. An estimated 9.5% of those searches ended in a purchase. Searches in the last 90 days moved +3.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated ¥7.3M a year.
- Searches, last 12 months
- 141K
- Growth, 90 days vs prior 90
- +3.8%
- Conversion, latest week
- 9.5%
- Market size, estimated
- ¥7.3Ma year
- Peak month
- December2.3× the quietest month
- Top search term
- 3ピン 2ピン 変換37K searches a year
02 · Price
A sale here is worth ¥546.43.
Listings sell for ¥546.43 on average, from ¥290.28 to ¥885.20. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 1,000 to 1,250 of them. At ¥546.43 that is ¥546K to ¥683K a year per listing.
- Average price
- ¥546.43above the $15 to $100 sweet spot
- Price range
- ¥290.28–¥885.20
- Amazon Japan median price
- ¥1942.07across 14,733 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 1,000–1,250
- Revenue per listing a year
- ¥546K–¥683K
- Returns
- 0.4%of orders · Amazon Japan median 0.4%
03 · Entry bar
The bar here is low.
39% of listings pay for placement with sponsored ads. 89% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #94 within 電設. It carries 429 reviews at 4.33 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 39%
- Prime listings
- 89%
- Out of stock, average day
- 0.0%
- Average rank
- #94in 電設
- Average rating
- 4.33 starsAmazon Japan average 4.15 stars
- Average reviews
- 429per listing
- Listings tracked
- 18
04 · Newcomers
1 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 61 months on average, so the names here are established.
- Launched, last 12 months
- 1
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 61 months
Products
Top 3ピン 2ピン 変換 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.
Top sellers
by estimated 90-day click share
エレコム OA雷アダプタ ホワイト 3ピン→2ピン アース付きコンセント T-H32
- Price
- ¥367.68
- Rating
- 4.3/5
- Reviews
- 1,343
- Age
- 22y ago

サンワサプライ(Sanwa Supply) 3P→2P変換アダプタ アースコード付き ブラック TAP-AD8BK
- Price
- ¥290.28
- Rating
- 4.4/5
- Reviews
- 1,260
- Age
- 9y ago

ICONSHOP 3P-2P 電源プラグ 変換アダプタ PSE認証品 1500Wまで対応 IC-3P2PNC
- Price
- ¥502.74
- Rating
- 4.5/5
- Reviews
- 41
- Age
- 1y ago

オーム電機 接地アダプターフリープラグ 変換用 アース端子カバー付き HS-TM1EFP3-K 00-5097 OHM
- Price
- ¥414.77
- Rating
- 4.5/5
- Reviews
- 167
- Age
- 6y ago

サンワサプライ(Sanwa Supply) 2P→3P変換アダプタ アース接続端子付き TAP-AD1RN
- Price
- ¥885.20
- Rating
- 4.4/5
- Reviews
- 510
- Age
- 14y ago
Trending
estimated 90-day click momentum
バッファロー BUFFALO 3ピン⇒2ピン変換アダプター ブラック BSTAPA01BK
- Price
- ¥466.86
- Rating
- 4.3/5
- Reviews
- 279
- Age
- 11y ago

接地アダプター アース端子カバー付き HS-TM1E1E3-K 00-2251
- Price
- ¥325.53
- Rating
- 4.5/5
- Reviews
- 35
- Age
- 9y ago

ROAD WARRIOR 日本用 変換プラグ アース付 3ピン→2ピン 変換 日本製 PSE取得商品 P-A2-A
- Price
- ¥778.35
- Rating
- 4.5/5
- Reviews
- 33
- Age
- 11mo ago

パナソニック(Panasonic) アースターミナル付変換アダプタ WH2881P
- Price
- ¥806.38
- Rating
- 4.1/5
- Reviews
- 1,058
- Age
- 15y ago

AC電源ケーブル コネクター【PSE規格品】ACコンセント 電源変換ケーブルアダプタ 3ピンソケット(メス)-2ピンプラグ(オス) アース線付き ストレートタイプ 定格7A-125V 1.5m
- Price
- ¥749.87
- Rating
- 4.1/5
- Reviews
- 23
- Age
- 1y ago
Newest
by launch date
ROAD WARRIOR 日本用 変換プラグ アース付 3ピン→2ピン 変換 日本製 PSE取得商品 P-A2-A
- Price
- ¥778.35
- Rating
- 4.5/5
- Reviews
- 33
- Age
- 11mo ago

ICONSHOP 3P-2P 電源プラグ 変換アダプタ PSE認証品 1500Wまで対応 IC-3P2PNC
- Price
- ¥502.74
- Rating
- 4.5/5
- Reviews
- 41
- Age
- 1y ago

AC電源ケーブル コネクター【PSE規格品】ACコンセント 電源変換ケーブルアダプタ 3ピンソケット(メス)-2ピンプラグ(オス) アース線付き ストレートタイプ 定格7A-125V 1.5m
- Price
- ¥749.87
- Rating
- 4.1/5
- Reviews
- 23
- Age
- 1y ago

ICONSHOP 3P-2P 電源プラグ 変換アダプタ PSE認証品 1500Wまで対応 アース線保護カバー付き IC-3P2P
- Price
- ¥523.97
- Rating
- 4.5/5
- Reviews
- 157
- Age
- 1y ago

F-Factory コンセント タップ 3P - 2P 電源変換アダプタ アースコード付きコンセント ブラック 1個 変換アダプタ FE-ETP-3P2P
- Price
- ¥630.99
- Rating
- 4.0/5
- Reviews
- 51
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 66% of clicks. Leaders hold, but buyers still shop past them.
Brands
11 rising
Sellers
115
Est. top-5 brand share
85%
Top 20: 100%
Est. top-5 click share
66%
Top 20: 100%
Open market
9%
- サンワサプライ(Sanwa Supply)29%
- エレコム(ELECOM)24%
- ICONSHOP16%
- オーム(OHM)11%
- ROAD WARRIOR6%
- バッファロー6%
- Open — no brand owns it (5 brands, 9%)
Demand
3ピン 2ピン 変換 search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Dec · busiest ÷ quietest = 2.3×
Search terms
Top 3ピン 2ピン 変換 search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 3ピン 2ピン 変換37K/yr
- コンセント 3ピン8K/yr
- アース付きプラグ変換アダプタ11K/yr
- コンセント 変換 3p 2p16K/yr
- 3ピン 変換7K/yr
- 3p 2p変換アダプタ9K/yr
- コンセント 3つ穴 変換6K/yr
- コンセント 3口から2口5K/yr
- コンセント アース 変換4K/yr
- アース付きコンセント 変換4K/yr
Reviews and returns
What reviews say buyers love and hate about 3ピン 2ピン 変換
We read the reviews and the return reasons for every product selling here.
“重要な商品スペックの説明にバラツキ月ある”
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
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
FAQ
Common 3ピン 2ピン 変換 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




