black extension cord 15 ft
Skip itA small market ($37K/yr) — this niche doesn't clear our bar today.
Conversion
Incredible23.7%search→purchase rate — share of searches ending in a sale
Returns
Great1.8%return rate — above 5% kills the launch gate
Avg price
Good$13.73avg listing price — sweet spot $15–$100
Brand share
Okay80%top-5 brand share — brands hold most of the demand
Price range
Okay$7.71–$19.96cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay66%top-5 click share — leaders hold, buyers still browse
Review moat
Bad11,149.28avg incumbent reviews — the moat a new listing must climb
Growth
Bad-12.9%90-day search growth — must beat 0% to launch
Quality gap
Bad4.8★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
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.No pronounced peak months · busiest ÷ quietest = 1.5×
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.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$8.454.7★2,798 rev
Amazon Basics Extension Cord 15 Ft 3-Prong Outlet Extender Indoor 13 Amps 125V Black
Amazon Basics$7.714.8★61,533 rev
Amazon Basics Indoor Extension Cord 13 Amps 125V 16 AWG 15 Foot Black 2-Pack 3-Prong Plugs
Amazon Basics$13.554.8★61,533 rev
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$14.994.8★5,386 rev
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$8.974.7★5,828 rev
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$17.85283 rev
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$15.621,020 rev
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$19.96336 rev
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$14.995,386 rev
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$8.725,386 rev
Trending
90-day click momentum15 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$17.854.8★
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$10.264.7★
![[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$11.324.9★
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$18.054.7★
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$19.964.7★
What buyers say about black extension cord 15 ft
What buyers praise and complain about, mined from review topics.What buyers love
“Seems well-made”
“Works as advertised”
“Well worth the price”
“Good sturdy cords”
“Nice Extension Cord”
“Just the right size”
“This is heavy duty”
“Durable”
“Extension cord works well”
“Easy to use”
What buyers complain about
“easy to break”
“Horrible quality”
“All the outlets are very loose”
“A bit thick”
“This cannot be new”
“the shape you see on the item picture is deceiving”
“Seems a little flimsy”
“I must have gotten a faulty unit”
“Laptop Power Supply got much to HOT after only a few minutes”
“NOT for OUTDOOR use”
Top return reasons
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.