---
title: "Black Extension Cord 15 Ft — $37K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/black-extension-cord-15-ft"
last_updated: "2026-08-08T18:19:12.718Z"
locale: en
meta:
description: "Niche score 39/100 · $37K/yr market · 11K searches/yr · $13.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $37K/yr market · 11K searches/yr · $13.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Black Extension Cord 15 Ft — $37K/yr Amazon US Niche (2026) - Flapen"
---
# **black extension cord 15 ft**
**Skip it**
A small market ($37K/yr) — this niche doesn't clear our bar today.
Market size 9Growth 19Conversion 100Competition 31Returns 79Price range 40Avg price 64Brand share 42Review moat 21Quality gap 14
**Conversion**
**Incredible****23.7%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.8%**
return rate — above 5% kills the launch gate
**Avg price**
**Good****$13.73**
avg listing price — sweet spot $15–$100
**Brand share**
**Okay****80%**
top-5 brand share — brands hold most of the demand
**Price range**
**Okay****$7.71–$19.96**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****66%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Bad****11,149.28**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-12.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.8★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$37K**
$37K/yr · 11K searches
According to Flapen's Amazon United States niche tracking, black extension cord 15 ft is a $37K/yr Amazon United States market (11K searches/yr). The top 5 brands hold 80% of demand. Verdict: Skip it — 39/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **black extension cord 15 ft market data**
- **Units sold / yr**
- **3K–3K**
- avg 100–250/product
- **Revenue / yr**
- **$34K–$41K**
- units × avg price
- **Conversion rate**
- **23.7%**
- **Avg BSR**
- **#127**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **72%**
- **Out of stock**
- **6.1%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **188 days**
## **Competition & brand share**
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▲rising
**Sellers**
**16**
**Top-5 brand share**
**80%**
Top 20: 100%
**Top-5 click share**
**66%**
Top 20: 100%
**Open market**
**16%**
- Amazon Basics29% - huanchain28% - Skrizcable10% - Seeklyze9% - GE5% - Belllights4% - Open — no brand owns it (7 brands, 16%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -12.9% search growth over the last 90 days.
350250Holiday '24Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/black-extension-cord-15-ft/trend)
## **Top black extension cord 15 ft 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%10%$4K20%$7K30%$11K40%$15K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**HUANCHAIN Indoor Outdoor Black Extension Cord 15 ft Waterproof 16/3 Gauge Flexible Cold-Resistant Appliance Extension Cable Outside 13A 1625W 16AWG SJTW 3 Prong Electric Cord ETL**huanchain**$8.45**4.7★2,798 rev](https://www.amazon.com/dp/B09TGSSH8V) [2**Amazon Basics Extension Cord 15 Ft 3-Prong Outlet Extender Indoor 13 Amps 125V Black**Amazon Basics**$7.71**4.8★61,533 rev](https://www.amazon.com/dp/B075BN4V7D) [3**Amazon Basics Indoor Extension Cord 13 Amps 125V 16 AWG 15 Foot Black 2-Pack 3-Prong Plugs**Amazon Basics**$13.55**4.8★61,533 rev](https://www.amazon.com/dp/B08QP2SMCP) [4**16/3 Black 15 FT (2Pack) Extension Cord Indoor Extension Cord for Laptops Coffee Makers Office Home Appliances 3 Prong Resistant Cable Flexible 13A 125V 1625W ETL Listed**Seeklyze**$14.99**4.8★5,386 rev](https://www.amazon.com/dp/B0F3D1Y9QY) [5**Skrizcable 16/3 13A 125V 1625W 15 FT Outdoor Extension Cord Waterproof Weatherproof & Flame Retardant Black 3 Prong Power Cord Outside for Lawn & Garden 125 VAC 16AWG SJTW ETL Listed**Skrizcable**$8.97**4.7★5,828 rev](https://www.amazon.com/dp/B0DJ19F62N)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**15 Ft Extension Cord with Multiple Outlets Long Extension with 6 Outlets 4 USB Ports(2 USB C) Flat Plug Surge Protector Power Strip for Home Office Supplies Dorm Essentials Black**SUPERDANNY**$17.85**283 rev3mo ago](https://www.amazon.com/dp/B0GCF7SK71) [**16/3 Indoor Extension Cord 15 FT 2 Pack Black Extension Cord Flexible & Durable 3 Prong Power Cable Suitable for Home and Office 13 Amp 1625 Watt 125VAC 16AWG ETL Listed**Skrizcable**$15.62**1,020 rev1y ago](https://www.amazon.com/dp/B0FFXW9MBQ) [**15Ft Extension Cord with Multiple Outlets Flat Plug Power Strip Surge Protector with 15 Ft Long Cord 8 Outlet 4 USB Ports (2 USB C) Desk Charging Station for Home Office College Dorm Room**SUPERDANNY**$19.96**336 rev1y ago](https://www.amazon.com/dp/B0DZ25VDV8) [**16/3 Black 15 FT (2Pack) Extension Cord Indoor Extension Cord for Laptops Coffee Makers Office Home Appliances 3 Prong Resistant Cable Flexible 13A 125V 1625W ETL Listed**Seeklyze**$14.99**5,386 rev1y ago](https://www.amazon.com/dp/B0F3D1Y9QY) [**16/3 Black 20 FT Extension Cord Indoor Extension Cord for Laptops Coffee Makers Office Home Appliances 3 Prong Resistant Cable Flexible 13A 125V 1625W ETL Listed**Seeklyze**$8.72**5,386 rev1y ago](https://www.amazon.com/dp/B0F3D3JF17)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**15 Ft Extension Cord with Multiple Outlets Long Extension with 6 Outlets 4 USB Ports(2 USB C) Flat Plug Surge Protector Power Strip for Home Office Supplies Dorm Essentials Black**SUPERDANNY**$17.85**4.8★**▲ 250%**](https://www.amazon.com/dp/B0GCF7SK71) [**HUANCHAIN 15 FT 16 Gauge Black Indoor Outdoor Extension Cord Waterproof Flexible Cold Weather 3 Prong Electric Cord Outside 13A 1625W 125V 16AWG SJTW ETL Listed**huanchain**$10.26**4.7★**▲ 232%**](https://www.amazon.com/dp/B0CDRN8QP3) [![[TaidaLink] 15ft Black Extension Cord 125V 10A 1250W Slim Design 2-Prong Polarized Plug for Humidifier Holiday Lights Lamps Security Cameras ppliance Indoor Outdoor Use (1 Pack)](https://m.media-amazon.com/images/I/51ovELbzx7L.jpg)**\[TaidaLink\] 15ft Black Extension Cord 125V 10A 1250W Slim Design 2-Prong Polarized Plug for Humidifier Holiday Lights Lamps Security Cameras ppliance Indoor Outdoor Use (1 Pack)**TaidaLink**$11.32**4.9★**▲ 185%**](https://www.amazon.com/dp/B0F31WSBK4) [**15Ft Extension Cord with Multiple Outlets Flat Plug Power Strip Surge Protector with 15 Ft Long Cord 6 Outlet 3 USB Ports (1 USB C) Multi Outlet Wall Plug for Travel College Dorm Essentials-Black**One Beat**$18.05**4.7★**▲ 151%**](https://www.amazon.com/dp/B0DJSMNLRK) [**15Ft Extension Cord with Multiple Outlets Flat Plug Power Strip Surge Protector with 15 Ft Long Cord 8 Outlet 4 USB Ports (2 USB C) Desk Charging Station for Home Office College Dorm Room**SUPERDANNY**$19.96**4.7★**▲ 133%**](https://www.amazon.com/dp/B0DZ25VDV8)
**~~View all trending →~~**
## **What buyers say about black extension cord 15 ft**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**24%
*“Seems well-made”*
**Advertised Vs Actual Product**16%
*“Works as advertised”*
**Value For Money**10%
*“Well worth the price”*
**Strength**7%
*“Good sturdy cords”*
**Add-Ons/Attachments**6%
*“Nice Extension Cord”*
**Size-Overall**4%
*“Just the right size”*
**Weight Heavy**3%
*“This is heavy duty”*
**Durability**3%
*“Durable”*
**Efficiency**3%
*“Extension cord works well”*
**Ease Of Use**3%
*“Easy to use”*
### **What buyers complain about **
**Durability**17%
*“easy to break”*
**Quality-Overall**14%
*“Horrible quality”*
**Socket/Port/Plug**14%
*“All the outlets are very loose”*
**Thickness**8%
*“A bit thick”*
**Product Condition**5%
*“This cannot be new”*
**Advertised Vs Actual Product**5%
*“the shape you see on the item picture is deceiving”*
**Strength**5%
*“Seems a little flimsy”*
**Defective Material/Parts**3%
*“I must have gotten a faulty unit”*
**Heating**3%
*“Laptop Power Supply got much to HOT after only a few minutes”*
**Suitable For Outdoor**3%
*“NOT for OUTDOOR use”*
### **Top return reasons **
**Size-Overall**25%
**Add-Ons/Attachments**12%
**Advertised Vs Actual Product**11%
**Value For Money**9%
**Compatibility-Overall**8%
**Functionality-Overall**7%
**Socket/Port/Plug**4%
**Quality-Overall**3%
**Color**2%
**Defective Material/Parts**2%
## **Common questions**
- **Is black extension cord 15 ft profitable to sell on Amazon United States?**
- The niche generates $37K/yr across 18 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.9%. Flapen's verdict: Skip it (39/100).
- **How competitive is the black extension cord 15 ft niche?**
- 13 brands and 16 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 80% of demand.
- **What do buyers complain about in black extension cord 15 ft?**
- Top complaints mined from reviews: Durability, Quality-Overall, Socket/Port/Plug. The return rate is 1.8%.
- **When does demand for black extension cord 15 ft peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the black extension cord 15 ft niche?**
- Listings span $7.71–$19.96; the average listing price is $13.73 (sweet spot $15–$100). The average incumbent carries 11,149 reviews — the moat a new listing must climb.
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