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ブラックライト 365nm

ブラックライト 365nm clears our launch bar: a $6.5M/yr market growing +38.6% this quarter with returns at 0.4%.

Flapen Score

59
Launch it

Top 39% of 4,191 DIY・工具・ガーデン niches · +2 vs the category median of 57

Market size 99Growth 62Conversion 48Competition 53Returns 98Price range 0Avg price 0Brand share 32Review moat 30Quality gap 82
This niche Category average · 4,191 niches

Is ブラックライト 365nm profitable on Amazon?

According to Flapen's Amazon Japan niche tracking, ブラックライト 365nm is a ¥6.5M/yr Amazon Japan market (84K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Jul. Verdict: Launch it — 59/100.

ブラックライト 365nm: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Yes. Search demand moved +38.6% over the last 90 days and 3.8% of searches end in a purchase.

¥6.5M

revenue / yr

Units sold / yr3K
Search volume / yr+38.6%84K
Conversion rate3.8%
Avg price¥2029.81

Who owns the niche?

The top 5 brands hold 86% of demand, so 14% of the market is open.

14%

open market share

Brands · sellers16 · 42
Top-5 product click share53%
Open market14%
Avg brand age38 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.2★ — the gap to enter on.

0/100

page quality · 34 products

Sponsored placement97%
New entrants (1y)8· 8 succeeded
Avg rating4.2★
Avg reviews3,518

Top ブラックライト 365nm products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

¥0¥259K¥517K¥776K¥1.0M101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

16 rising

Sellers

42

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

53%

Top 20: 86%

Open market

12%

  • DARKBEAM53%
  • ALONEFIRE17%
  • Lepro9%
  • RACAYZEE4%
  • BESTSUN2%
  • SUNPIE2%
  • Open — no brand owns it (10 brands, 12%)

ブラックライト 365nm demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume84KCVR3.8%Products34Brands16Top 5 Brands86%OOS Rate0.6%Rating4.2★Reviews3,518Avg BSR#68
3K2KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jul · busiest ÷ quietest = 1.6×

Top ブラックライト 365nm search terms shoppers use

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

  • ブラックライト 365nm37K/yr
  • uvライト 365nm13K/yr
  • ブラックライト 充電式10K/yr
  • 365nm ブラックライト8K/yr
  • 365nm5K/yr
  • 鉱物 ライト6K/yr
  • uvライト 充電式4K/yr

What reviews say buyers love and hate about ブラックライト 365nm

What buyers mention most, as a share of all reviews.

What buyers love

71% of reviews
明るさ/輝き/光沢18%

めちゃくちゃ蓄光します

使用の容易さ14%

実用メリット

充電10%

充電式でスリムなボディは使いやすい

総合品質7%

アルミボディの質感も良く、ガジェットとして手元に置いておくだけで頼もしい優秀なクオリティ。

コストパフォーマンス6%

お手頃価格

What buyers complain about

60% of reviews
明るさ/輝き/光沢17%

光量にばらつき

充電10%

全く充電出来ません。

サイズ全体7%

到底収まりません。

総合品質5%

ゴミ

耐久性4%

3か月ほど使用しなかったら、なかなかONしなかった。

ブラックライト 365nm return rate & reasons

Why buyers send it back, as a share of all return requests.

0.4%

Return rate

0%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1充電
34%
2明るさ/輝き/光沢
14%
3不良材料/部品
11%
4機能全体
9%
5広告と実際の製品の違い
6%

Common ブラックライト 365nm questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores ブラックライト 365nm 59/100 on Amazon Japan — Launch it. The niche generates ¥6.5M/yr across 34 tracked products. 8 of 8 products launched in the last 360 days are still selling. Search demand moved +38.6% over the last 90 days.
Search demand for ブラックライト 365nm on Amazon Japan peaks in Jul, where the busiest month runs 1.6× the quietest.