---
title: "Gfci Extension Cord — $155K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/gfci-extension-cord"
last_updated: "2026-08-07T16:56:01.965Z"
locale: en
meta:
description: "Niche score 60/100 · $155K/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 60/100 · $155K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Gfci Extension Cord — $155K/yr Amazon US Niche (2026) - Flapen"
---
# **gfci extension cord**
**Worth a look**
Shows a sweet-spot price point ($29.47 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 33Growth 61Conversion 53Competition 76Returns 87Price range 88Avg price 95Brand share 65Review moat 49Quality gap 21
**Avg price**
**Incredible****$29.47**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$10.73–$61.29**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.4%**
return rate — above 5% kills the launch gate
**Competition**
**Great****39%**
top-5 click share — an open shelf
**Brand share**
**Good****66%**
top-5 brand share — brands hold most of the demand
**Growth**
**Good****+37.7%**
90-day search growth — must beat 0% to launch
**Conversion**
**Good****4.4%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Okay****1,590.73**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****$155K**
$155K/yr · 120K searches
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, gfci extension cord is a $155K/yr Amazon United States market (120K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Jun. Verdict: Worth a look — 60/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **gfci extension cord market data**
- **Units sold / yr**
- **8K–10K**
- avg 100–250/product
- **Revenue / yr**
- **$236K–$295K**
- units × avg price
- **Conversion rate**
- **4.4%**
- **Avg BSR**
- **#615**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **3.6%**
- **Avg brand age**
- **55 months**
- **Avg seller age**
- **183 days**
## **Competition & brand share**
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.
**Brands**
**22 **▲rising
**Sellers**
**50**
**Top-5 brand share**
**66%**
Top 20: 98%
**Top-5 click share**
**39%**
Top 20: 78%
**Open market**
**30%**
- DEWENWILS43% - Watt's Wire10% - EP4% - JIOODICH.4% - ELEGRP4% - Tower4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +37.7% search growth over the last 90 days.
3K2KHoliday '24Spike '25Prime Day '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/gfci-extension-cord/trend)
## **Top gfci extension cord search terms**
- **gfci extension cord**84K/yr+16.4%3.0% conv. - **gfci extension cord outdoor**8K/yr+254.9%3.4% conv. - **gfci extension cord for pool pump**4K/yr+841.0%1.8% conv. - **gfci cord**11K/yr+26.6%5.9% conv. - **gfci extension**5K/yr+26.7%2.8% conv. - **gfci power cord**3K/yr+21.4%3.2% conv. - **extension cord gfci**3K/yr+21.1%3.3% conv. - **gfci outdoor extension cords**3K/yr-23.1%2.0% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/gfci-extension-cord/search-terms)
## **Top gfci 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%$8K10%$15K15%$23K20%$31K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**DEWENWILS 3 FT Automatic GFCI Extension Cord Outdoor 12/3 Gauge Extension Cord for Multiple Appliances Heavy Duty Power Cable with LED Lighted 3 Prong Plug Yellow UL Listed**DEWENWILS**$26.27**4.7★1,216 rev](https://www.amazon.com/dp/B08G4HNCR1) [2**DEWENWILS 3Ft Automatic GFCI Extension Cord Outdoor 12/3 SJTW Heavy Duty Extension Cord Power Cord with LED Lighted 3 Prong Plug 15A/125V/1875W Yellow UL Listed**DEWENWILS**$25.22**4.6★129 rev](https://www.amazon.com/dp/B0CQJNYLN3) [3**DEWENWILS 3Ft Automatic GFCI Extension Cord Outdoor 12/3 SJTW Heavy Duty Extension Cord Power Cord with LED Lighted 3 Prong Plug 15A/125V/1875W Black UL Listed**DEWENWILS**$25.15**4.6★129 rev](https://www.amazon.com/dp/B0CQJR8H9D) [4**10 ft GFCI Extension Cord - Outdoor Extension Cord Waterproof - Heavy Duty Outdoor Extension Cords 10 ft with Multiple Outlets - Watts Wire - 10 Grounded - GFI Cord**Watt's Wire**$53.15**4.7★649 rev](https://www.amazon.com/dp/B0C34N843G) [5**CCCEI GFCI Outdoor Power Strip Weatherproof with 8 AC Waterproof Extension Cord with Multiple Outlets Wall Mount Surge Protector Flat Plug Christmas Exterior Garden Yard 15FT Yellow.**CCCEI**$39.86**4.5★133 rev](https://www.amazon.com/dp/B0F8453WFT)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**JIOODICH. 3 FT Auto GFCI Extension Cord Outdoor with 3 Outlets 12/3 SJTW**JIOODICH.**$23.50**46 rev8mo ago](https://www.amazon.com/dp/B0FDR6HX5L) [**GFCI Power Strip with 10ft Heavy Duty Extension Cord 3 Outlet (1875W/15A) with 30mA RCBO Circuit Breaker for Home Factory Workshop Garage Covered Outdoor**BEVA**$38.94**10 rev8mo ago](https://www.amazon.com/dp/B0FVXB2T37) [**CCCEI GFCI Outdoor Power Strip Weatherproof with 8 AC Waterproof Extension Cord with Multiple Outlets Wall Mount Surge Protector Flat Plug Christmas Exterior Garden Yard 15FT Yellow.**CCCEI**$39.86**133 rev1y ago](https://www.amazon.com/dp/B0F8453WFT) [**DEWENWILS 6FT Automatic GFCI Extension Cord Outdoor Heavy Duty 12/3 SJTW Cord with LED Lighted Plug for Leaf Blower Lawnmower Weed Whacker 15A 125V Yellow UL Listed**DEWENWILS**$33.08**1,216 rev1y ago](https://www.amazon.com/dp/B0DMV98JN1) [**2 Prong GFCI Power Strip VINTAR 2 Prong to 3 Prong GFCI Plug Adapter 6ft Extension Cord with 6 Outlets & 4 USB(2 USB-C) 1050J Surge Protector Polarized Plug Wall Mount for Non-Grounded Outlet**VINTAR**$39.74**68 rev1y ago](https://www.amazon.com/dp/B0DKFBG4GR)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**6 ft Outdoor Extension Cord Waterproof - GFCI Extension Cord 6 ft - Heavy Duty Outdoor Extension Cords - WeatherWire - GFI Cord**WeatherWire**$33.27**5.0★**▲ 262%**](https://www.amazon.com/dp/B0GWVXYT9J) [**DEWENWILS 3Ft Automatic GFCI Extension Cord Outdoor 12/3 SJTW Heavy Duty Extension Cord Power Cord with LED Lighted 3 Prong Plug 15A/125V/1875W Yellow UL Listed**DEWENWILS**$25.22**4.6★**▲ 120%**](https://www.amazon.com/dp/B0CQJNYLN3) [**10 ft GFCI Extension Cord - Outdoor Extension Cord Waterproof - Heavy Duty Outdoor Extension Cords 10 ft with Multiple Outlets - Watts Wire - 10 Grounded - GFI Cord**Watt's Wire**$53.15**4.7★**▲ 94%**](https://www.amazon.com/dp/B0C34N843G) [**DEWENWILS 3 FT Automatic GFCI Extension Cord Outdoor 12/3 Gauge Extension Cord for Multiple Appliances Heavy Duty Power Cable with LED Lighted 3 Prong Plug Black UL Listed**DEWENWILS**$26.03**4.7★**▲ 73%**](https://www.amazon.com/dp/B08PKJKPPW) [**DEWENWILS 3Ft Outdoor GFCI Extension Cord Manual 12/3 SJTW Heavy Duty Extension Cord Power Cord with LED Lighted 3 Prong Plug 15A/125V/1875W Black UL Listed**DEWENWILS**$24.09**4.4★**▲ 61%**](https://www.amazon.com/dp/B0CQJR6TY7)
**~~View all trending →~~**
## **What buyers say about gfci extension cord**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**17%
*“Functional good quality”*
**Advertised Vs Actual Product**12%
*“As described”*
**Socket/Port/Plug**11%
*“also has a bunch of USB ports”*
**Ease Of Use**7%
*“Easy Peasy”*
**Charging**7%
*“charges fast and is easy to mount”*
**Value For Money**6%
*“Great Value”*
**Size-Overall**5%
*“Fit as advertised”*
**Strength**3%
*“Strong material”*
**Portability**3%
*“Very useful for traveling”*
**Design-Overall**3%
*“Very well built”*
### **What buyers complain about **
**Durability**12%
*“Broke”*
**Socket/Port/Plug**12%
*“The usb ports don't work”*
**Functionality-Overall**8%
*“It does not seem to function”*
**Charging**8%
*“The USB ports are not fast charging”*
**Quality-Overall**6%
*“Poor quality control”*
**Strength**4%
*“Flimsy”*
**Weight Heavy**3%
*“A bit heavy and bulky”*
**Flammable**2%
*“Caught Fire”*
**Compatibility-Overall**2%
*“did not work in ANY OUTLET”*
**Ease Of Use**2%
*“couldn't be easier to use”*
### **Top return reasons **
**Size-Overall**33%
**Socket/Port/Plug**11%
**Functionality-Overall**9%
**Advertised Vs Actual Product**8%
**Value For Money**7%
**Compatibility-Overall**6%
**Defective Material/Parts**4%
**Add-Ons/Attachments**3%
**Charging**3%
**Connectivity-Overall**2%
## **Common questions**
- **Is gfci extension cord profitable to sell on Amazon United States?**
- The niche generates $155K/yr across 37 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is +37.7%. Flapen's verdict: Worth a look (60/100).
- **How competitive is the gfci extension cord niche?**
- 22 brands and 50 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 66% of demand.
- **What do buyers complain about in gfci extension cord?**
- Top complaints mined from reviews: Durability, Socket/Port/Plug, Functionality-Overall. The return rate is 1.4%.
- **When does demand for gfci extension cord peak?**
- Demand peaks in Jun; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the gfci extension cord niche?**
- Listings span $10.73–$61.29; the average listing price is $29.47 (sweet spot $15–$100). The average incumbent carries 1,591 reviews — the moat a new listing must climb.
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