---
title: "Black Extension Cord — $552K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/electronics/black-extension-cord"
last_updated: "2026-07-21T11:17:33.733Z"
locale: en
meta:
description: "Niche score 57/100 · $552K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 57/100 · $552K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Black Extension Cord — $552K/yr Amazon US Niche (2026) - Flapen"
---
# **black extension cord**
**Worth a look**
Shows searches that convert (11.9% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 62Growth 43Conversion 94Competition 52Returns 85Price range 68Avg price 54Brand share 66Review moat 20Quality gap 15
**Conversion**
**Great****11.9%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.5%**
return rate — above 6% kills the launch gate
**Price range**
**Good****$5.57–$34.78**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****65%**
top-5 brand share — brands hold most of the demand
**Market size**
**Good****$552K**
$552K/yr · 372K searches
**Avg price**
**Good****$12.52**
avg listing price — sweet spot $15–$100
**Competition**
**Good****54%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+14.7%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****13,251.27**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.8★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, black extension cord is a $552K/yr Amazon United States market (372K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in Nov. Verdict: Worth a look — 57/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **black extension cord market data**
- **Units sold / yr**
- **60K–80K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$751K–$1.0M**
- units × avg price
- **Launch success**
- **—**
- 1 of 1 new (360d)
- **Conversion rate**
- **11.9%**
- **Avg BSR**
- **#45**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **82%**
- **Out of stock**
- **2.9%**
- **Avg brand age**
- **54 months**
- **Avg seller age**
- **189 days**
## **Competition & brand share**
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▼falling
**Sellers**
**26**
**Top-5 brand share**
**65%**
Top 20: 100%
**Top-5 click share**
**54%**
Top 20: 98%
**Open market**
**30%**
- Seeklyze22% - Amazon Basics21% - Skrizcable8% - LitStar7% - HANYCONY7% - Yintar4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +14.7% search growth over the last 90 days.
13K8KHoliday '24Spike '25Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Nov · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/electronics/black-extension-cord/trend)
## **Top black extension cord search terms**
- **black extension cord**281K/yr+17.7%10.1% conv. - **extension cord black**57K/yr-2.6%8.6% conv. - **black indoor extension cord**8K/yr+52.2%7.5% conv. - **black extension cords**10K/yr+6.6%11.3% conv. - **black power cord**4K/yr+10.6%6.5% conv. - **black extension**3K/yr+5.3%3.5% conv. - **black extension cord indoor**3K/yr+23.1%9.0% conv. - **extension cords black**3K/yr+35.9%10.8% conv. - **black extention cord**2K/yr+15.1%11.5% conv. [**All search terms **](https://flapen.com/research/us/electronics/black-extension-cord/search-terms)
## **Top black extension cord 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%$28K10%$55K15%$83K20%$110K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Amazon Basics Extension Cord 10 Ft 3 Prong Outlet Extender Indoor 13 Amps 125V Black**Amazon Basics**$7.14**4.8★61,447 rev](https://www.amazon.com/dp/B075BMVZ2N) [2**16/3 Black Extension Cord 6 FT Indoor Short Extension Cord for Laptops Coffee Makers Office Home Appliances 3 Prong Small Resistant Cable Flexible 13A 125V 1625W ETL Listed**Seeklyze**$6.22**4.8★5,314 rev](https://www.amazon.com/dp/B0F3D7VT7N) [3**Skrizcable 16/3 25 FT Outdoor Extension Cord Waterproof Weatherproof & Flame Retardant Black 3 Prong Power Cord Outside for Lawn & Garden 13 Amps 1625 Watts 125 VAC 16AWG SJTW ETL Listed**Skrizcable**$10.53**4.7★5,631 rev](https://www.amazon.com/dp/B0DJ1BVZGX) [4**Flat Plug Extension Cord with 3 Outlets - 6Ft Low Profile Indoor 3 Prong Grounded Power Strip for Home Office & Travel - 16 AWG 13A/1625W Black**LitStar**$9.93**4.8★912 rev](https://www.amazon.com/dp/B0FHJB6HRS) [5**Power Strip Surge Protector HANYCONY 5Ft Ultra Thin Flat Extension Cord with Multiple Outlets 8 Widely Outlet Extender 4 USB Ports(2 USB C) 1080J Wall Mount for College Dorm Room Essentials Black**HANYCONY**$11.13**4.8★2,918 rev](https://www.amazon.com/dp/B0C6XNMLX3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**15 Ft 3 Outlet Outdoor Extension Cord Waterproof Grounded Extension Cord with Multiple Outlets 16/3 AWG 3 Prong Power Strip for Garden Patio Camping 13A 125V 1625W ETL Listed Black**cismorvex**$12.29**226 rev8mo ago](https://www.amazon.com/dp/B0G19XVKK1) [**Flat Plug Extension Cord with 3 Outlets - 6Ft Low Profile Indoor 3 Prong Grounded Power Strip for Home Office & Travel - 16 AWG 13A/1625W Black**LitStar**$9.93**912 rev1y ago](https://www.amazon.com/dp/B0FHJB6HRS) [**10Ft Extension Cord with Multiple Outlets Flat Plug Power Strip Surge Protector with 10 Ft Long Cord 8 Outlet 4 USB Ports (2 USB C) Multi Outlet Wall Plug for Office College Dorm Room Essentials**SUPERDANNY**$16.19**6,260 rev1y ago](https://www.amazon.com/dp/B0DZ26D2XG) [**16/3 Black Extension Cord 6 FT Indoor Short Extension Cord for Laptops Coffee Makers Office Home Appliances 3 Prong Small Resistant Cable Flexible 13A 125V 1625W ETL Listed**Seeklyze**$6.22**5,314 rev1y ago](https://www.amazon.com/dp/B0F3D7VT7N) [**10 FT (2Pack) 13A 1625W 16/3 Black Extension Cord Indoor Extension Cord for Laptops Coffee Makers Office Home Appliances 3 Prong Resistant Cable Flexible 125V ETL Listed**Seeklyze**$11.95**5,314 rev1y ago](https://www.amazon.com/dp/B0F3D1H9X3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Amazon Basics Extension Cord 10 Ft 3 Prong Outlet Extender Indoor 13 Amps 125V Black**Amazon Basics**$7.14**4.8★**▲ 185%**](https://www.amazon.com/dp/B075BMVZ2N) [**Flat Plug Extension Cord with 3 Outlets - 6Ft Low Profile Indoor 3 Prong Grounded Power Strip for Home Office & Travel - 16 AWG 13A/1625W Black**LitStar**$9.93**4.8★**▲ 126%**](https://www.amazon.com/dp/B0FHJB6HRS) [**GE 3-Outlet Power Strip Surge Protector 15 Ft Braided Long Cord Extension Cord Surge Protector Power Strip Flat Plug Extension Cord 250 Joules ETL Listed Black 44237**GE**$11.80**4.8★**▲ 119%**](https://www.amazon.com/dp/B07NJ8MS3K) [**10Ft Extension Cord with Multiple Outlets Flat Plug Power Strip Surge Protector with 10 Ft Long Cord 8 Outlet 4 USB Ports (2 USB C) Multi Outlet Wall Plug for Office College Dorm Room Essentials**SUPERDANNY**$16.19**4.8★**▲ 104%**](https://www.amazon.com/dp/B0DZ26D2XG) [**15 Ft 3 Outlet Outdoor Extension Cord Waterproof Grounded Extension Cord with Multiple Outlets 16/3 AWG 3 Prong Power Strip for Garden Patio Camping 13A 125V 1625W ETL Listed Black**cismorvex**$12.29**4.8★**▲ 80%**](https://www.amazon.com/dp/B0G19XVKK1)
**~~View all trending →~~**
## **What buyers say about black extension cord**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**21%
*“The build quality feels solid”*
**Advertised Vs Actual Product**15%
*“As Advertised”*
**Value For Money**11%
*“value for money”*
**Socket/Port/Plug**8%
*“there are ample ports”*
**Strength**5%
*“Good balance of strength and functionality”*
**Durability**4%
*“Feels durable”*
**Charging**4%
*“Works great, USBC fast charges”*
**Add-Ons/Attachments**4%
*“A great extension for any situation”*
**Ease Of Use**4%
*“Very handy”*
**Size-Overall**2%
*“A good fit”*
### **What buyers complain about **
**Durability**14%
*“After 1 month”*
**Quality-Overall**12%
*“Bad Quality”*
**Functionality-Overall**8%
*“Hard to tell if working”*
**Socket/Port/Plug**5%
*“USB outlet not working”*
**Charging**5%
*“wasnt successful on a charge”*
**Heating**4%
*“gets hot nearly instantly”*
**Advertised Vs Actual Product**3%
*“Fault advertisement”*
**Size-Overall**3%
*“Doesn't fit”*
**Value For Money**3%
*“found another brand cheaper”*
**Strength**3%
*“Cheaply made flimsy”*
### **Top return reasons **
**Size-Overall**21%
**Add-Ons/Attachments**10%
**Value For Money**10%
**Advertised Vs Actual Product**8%
**Functionality-Overall**8%
**Socket/Port/Plug**7%
**Compatibility-Overall**5%
**Quality-Overall**4%
**Defective Material/Parts**3%
**Thin**2%
## **Common questions**
- **Is black extension cord profitable to sell on Amazon United States?**
- The niche generates $552K/yr across 22 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +14.7%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the black extension cord niche?**
- 17 brands and 26 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 65% of demand.
- **What do buyers complain about in black extension cord?**
- Top complaints mined from reviews: Durability, Quality-Overall, Functionality-Overall. The return rate is 1.5%.
- **When does demand for black extension cord peak?**
- Demand peaks in Nov; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the black extension cord niche?**
- Listings span $5.57–$34.78; the average listing price is $12.52 (sweet spot $15–$100). The average incumbent carries 13,251 reviews — the moat a new listing must climb.
## **Related niches in Electronics**
- 65 [**rechargeable lithium aa batteries**](https://flapen.com/research/us/electronics/rechargeable-lithium-aa-batteries)$1.1M/yr-4.3%**Worth a look**- 65 [**outlet extender**](https://flapen.com/research/us/electronics/outlet-extender)$15.6M/yr-10.9%**Worth a look**- 66 [**arlo pro 4 battery**](https://flapen.com/research/us/electronics/arlo-pro-4-battery)$121K/yr+18.3%**Worth a look**- 66 [**power strip**](https://flapen.com/research/us/electronics/power-strip)$36.8M/yr+0.8%**Launch it**- 66 [**extension cord**](https://flapen.com/research/us/electronics/extension-cord)$48.3M/yr+3.5%**Launch it**- 66 [**marine radio**](https://flapen.com/research/us/electronics/marine-radio)$2.4M/yr+82.1%**Launch it**[**All Electronics niches **](https://flapen.com/research/us/electronics)