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44

black light string light

Skip it

A small market ($22K/yr) — this niche doesn't clear our bar today.

Market size 5Growth 51Conversion 31Competition 47Returns 31Price range 64Avg price 80Brand share 46Review moat 52Quality gap 76

Avg price

Great$17.16

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Price range

Good$7.89–$27.48

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

Review moat

Good1,420.39

avg incumbent reviews — the moat a new listing must climb

Growth

Good+21.7%

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

Competition

Okay57%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay77%

top-5 brand share — brands hold most of the demand

Conversion

Okay2.5%

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

Returns

Okay4.5%

return rate — above 5% kills the launch gate

Market size

Bad$22K

$22K/yr · 51K searches

According to Flapen's Amazon United States niche tracking, black light string light is a $22K/yr Amazon United States market (51K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 44/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

black light string light market data

Units sold / yr
2K–3K
avg 0–100/product
Revenue / yr
$34K–$43K
units × avg price
Conversion rate
2.5%
Avg BSR
#344
Page quality
0%
Prime
100%
Sponsored
100%
Out of stock
13.1%
Avg brand age
43 months
Avg seller age
236 days

Competition & brand share

The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 falling

Sellers

19

Top-5 brand share

77%

Top 20: 100%

Top-5 click share

57%

Top 20: 97%

Open market

18%

  • Solhice41%
  • PIZHLO12%
  • OMIKA10%
  • Smacen9%
  • THECHAM5%
  • FULLBELL5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +21.7% search growth over the last 90 days.
3K2KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 5.3×

Top black light string light search terms

  • black light string light11K/yr
  • black light string lights19K/yr
  • blacklight string lights10K/yr
  • uv string lights5K/yr
  • black light christmas lights6K/yr
All search terms

Top black light string light 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%5%$1K10%$2K15%$3K20%$4K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 23 tracked products in this niche — three views at once, no toggling.

What buyers say about black light string light

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

What buyers love

Brightness/Shine/Glow28%

“These are bright”

Value For Money10%

“Worth the money”

Quality-Overall7%

“Quality is amazing”

Efficiency7%

“Works great”

Advertised Vs Actual Product6%

“Works as advertised”

Ease Of Use5%

“Easy to use”

Assembly/Installation5%

“Easy to set up”

Size-Overall3%

“Good size”

Strength3%

“Powerful”

Weight Light2%

“They're extremely lightweight”

What buyers complain about

Brightness/Shine/Glow22%

“No glow”

Durability13%

“doesn't last”

Adhesion/Stickiness9%

“Bad adhesive”

Quality-Overall8%

“The price is a little high for its quality”

Size-Overall6%

“not a good fit for me”

Bulb Flicker/Dimming/Color5%

“Incredibly dim which was surprising considering they're supposedly 36 watts”

Strength4%

“It already came to me a little clumsy right now its in the garbage”

Functionality-Overall3%

“cannot work normally”

Socket/Port/Plug3%

“The port where you plug it in, broke off”

Defective Material/Parts2%

“a small section didnt work”

Top return reasons

Brightness/Shine/Glow26%
Size-Overall16%
Bulb Flicker/Dimming/Color10%
Functionality-Overall9%
Advertised Vs Actual Product8%
Socket/Port/Plug5%
Defective Material/Parts4%
Charging3%
Quality-Overall3%
Adhesion/Stickiness2%

Common questions

Is black light string light profitable to sell on Amazon United States?
The niche generates $22K/yr across 23 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +21.7%. Flapen's verdict: Skip it (44/100).
How competitive is the black light string light niche?
15 brands and 19 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 77% of demand.
What do buyers complain about in black light string light?
Top complaints mined from reviews: Brightness/Shine/Glow, Durability, Adhesion/Stickiness. The return rate is 4.5%.
When does demand for black light string light peak?
Demand peaks in Sep–Oct–Nov; the busiest month runs 5.3× the quietest.
What does it cost to enter the black light string light niche?
Listings span $7.89–$27.48; the average listing price is $17.16 (sweet spot $15–$100). The average incumbent carries 1,420 reviews — the moat a new listing must climb.