---
title: "3 Prong Plug — $71K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/3-prong-plug"
last_updated: "2026-08-08T06:52:57.621Z"
locale: en
meta:
description: "Niche score 49/100 · $71K/yr market · 120K searches/yr · $9.21 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $71K/yr market · 120K searches/yr · $9.21 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "3 Prong Plug — $71K/yr Amazon US Niche (2026) - Flapen"
---
# **3 prong plug**
**Skip it**
A small market ($71K/yr) — this niche doesn't clear our bar today.
Market size 18Growth 23Conversion 70Competition 75Returns 84Price range 40Avg price 27Brand share 85Review moat 22Quality gap 28
**Brand share**
**Great****50%**
top-5 brand share — no brand owns this niche
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Competition**
**Good****40%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Good****6.5%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Okay****$3.71–$22.66**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Okay****$9.21**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-4.2%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****9,743.56**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$71K**
$71K/yr · 120K searches
According to Flapen's Amazon United States niche tracking, 3 prong plug is a $71K/yr Amazon United States market (120K searches/yr). The top 5 brands hold 50% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 49/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **3 prong plug market data**
- **Units sold / yr**
- **8K–10K**
- avg 100–250/product
- **Revenue / yr**
- **$74K–$92K**
- units × avg price
- **Conversion rate**
- **6.5%**
- **Avg BSR**
- **#41**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **87%**
- **Out of stock**
- **4.6%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**31 **▲rising
**Sellers**
**71**
**Top-5 brand share**
**50%**
Top 20: 87%
**Top-5 click share**
**40%**
Top 20: 78%
**Open market**
**45%**
- Leviton23% - Herfair8% - ThunderWay7% - Bangjia6% - TROND5% - OFOAEEA5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -4.2% search growth over the last 90 days.
8K6KSpike '24Holiday '24Spike '25Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Nov, Dec · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/3-prong-plug/trend)
## **Top 3 prong plug search terms**
- **3 prong plug**34K/yr-1.3%7.9% conv. - **clavijas electricas**18K/yr-15.3%1.6% conv. - **ac plug adapter**12K/yr+47.8%1.6% conv. - **adaptor plugs**14K/yr-15.0%3.8% conv. - **electrical plugs 3 prong**12K/yr-34.5%5.5% conv. - **cord plug**6K/yr+1.1%3.9% conv. - **plug adaptor**6K/yr+3.6%3.7% conv. - **electrical adapter**5K/yr+21.4%4.9% conv. - **electric plugs for cords**5K/yr-22.0%3.7% conv. - **enchufes elctricos**5K/yr-7.6%0.1% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/3-prong-plug/search-terms)
## **Top 3 prong plug 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%$4K10%$7K15%$11K20%$14K101001K10K100K1.0M 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**Leviton 515PV-OR 15 Amp 125 Volt Grounding Plug Orange**Leviton**$4.03**4.8★7,889 rev](https://www.amazon.com/dp/B007QW7BW0) [2**Electrical Replacement Plugs Male End Extension Cord 125V 15A 2Pole 3Wire 2 Pole Male Straight Blade Plug Ground Neutral Generator Plug 3 Prong Power Cord 3 Pack**Herfair**$7.35**4.3★258 rev](https://www.amazon.com/dp/B0DQWD2RJM) [3**NEMA 5-15P Electrical Replacement Plugs End Extension Cord Ends 125V 15A 2Pole 3Wire Male PlugGround Neutral Generator Plug3 Prong Power Replacement Type (3)**Bangjia**$10.02**4.3★401 rev](https://www.amazon.com/dp/B0CJ55LTZN) [4**ThunderWay Electrical Replacement Plug & Connector Set Extension Cord Ends Male and Female 15A 125V Straight Blade Plug Grounding Type NEMA 5-15P&5-15R 3-Prong Straight Blade-5 Set UL Listed**ThunderWay**$19.37**4.6★780 rev](https://www.amazon.com/dp/B0CSFKZNXV) [5**Replacement Plugs 3 Pack 3 Prong Replacement Plug with 1 Screwdriver Extension Cord Ends ReplacementPlug 3 Prong Neutral Ground Bonding Plugg 3 Wire 15A 125V Male Plug Black**OFOAEEA**$8.14**4.4★369 rev](https://www.amazon.com/dp/B0D6YKSTBN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**ThunderWay Electrical Replacement Plug Extension Cord Ends Male 3 Prong NEMA 5-15P 15 Amp 125 Volt Commercial & Industrial Grade Straight Blade Grounding Type UL Listed Yellow 5 Pack**ThunderWay**$9.89**37 rev7mo ago](https://www.amazon.com/dp/B0G7XSN7Q6) [**Power Cord 5ft(1.5m) 10 Amps 125 Volts 18AWG 3 Prong AC Power Cord Cable for Electronics TV Computer Printer Radio Monitor Samsung Dell Vizio LG Asus Laptop and More-ETL Listed**Vockjour**$5.95**319 rev9mo ago](https://www.amazon.com/dp/B0FNML9SRY) [**Electrical Replacement Plugs Male End Extension Cord 125V 15A 2Pole 3Wire 2 Pole Male Straight Blade Plug Ground Neutral Generator Plug 3 Prong Power Cord 3 Pack**Herfair**$7.35**258 rev1y ago](https://www.amazon.com/dp/B0DQWD2RJM) [**Portable 3 Prong to 2 Prong Outlet Adapter Fireproof 392 3-2 Prong Adapter Converter Heavy Duty Wall Plug Adapter for Household Appliances Industrial 1875W Max 4 Packs**SerBion**$7.09**2,170 rev1y ago](https://www.amazon.com/dp/B0DK339SRZ) [**REKNA USB Wall Charger Dual Port Cube Power Adapter Charger Plug Block Charging Box Dual Port Wall Charging Adapter Compatible for i Phone 14 13 12 11Milky White (3-Pack)**REKNA**$5.79**4,719 rev2y ago](https://www.amazon.com/dp/B0DB5FQXNS)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Power Cord 5ft(1.5m) 10 Amps 125 Volts 18AWG 3 Prong AC Power Cord Cable for Electronics TV Computer Printer Radio Monitor Samsung Dell Vizio LG Asus Laptop and More-ETL Listed**Vockjour**$5.95**4.8★**▲ 271%**](https://www.amazon.com/dp/B0FNML9SRY) [**ThunderWay Electrical Replacement Plug Extension Cord Ends Male 3 Prong NEMA 5-15P 15 Amp 125 Volt Commercial & Industrial Grade Straight Blade Grounding Type UL Listed Yellow 5 Pack**ThunderWay**$9.89**4.6★**▲ 242%**](https://www.amazon.com/dp/B0G7XSN7Q6) [**Electrical Replacement Plugs Male End Extension Cord 125V 15A 2Pole 3Wire 2 Pole Male Straight Blade Plug Ground Neutral Generator Plug 3 Prong Power Cord 3 Pack**Herfair**$7.35**4.3★**▲ 110%**](https://www.amazon.com/dp/B0DQWD2RJM) [**5-15P to 5-15R 5-20R 6-15R 6-20R Adapter Plugrand 15 Amp Household AC Plug to 20 Amp T Blade Adapter 4 in 1 AC Power Plug 15A 125V to 20A 250V Adapters**Plugrand**$7.09**4.5★**▲ 102%**](https://www.amazon.com/dp/B081YN8BK9) [**Journeyman-Pro - 515PV 15 Amp 125 Volt Male Electrical Plug Replacement 3 Prong NEMA 5-15P Straight Blade Heavy Duty Commercial Grade Extension Cord End Repair 2-Pole 3-Wire (Black 1-Pack)**Journeyman-Pro**$11.96**4.6★**▲ 96%**](https://www.amazon.com/dp/B078FNZY2H)
**~~View all trending →~~**
## **What buyers say about 3 prong plug**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**14%
*“Fantastic quality”*
**Advertised Vs Actual Product**12%
*“As Expected”*
**Socket/Port/Plug**11%
*“Superb plug”*
**Charging**11%
*“Charges fast”*
**Value For Money**9%
*“Great deal”*
**Ease Of Use**8%
*“Easy to replace”*
**Size-Overall**4%
*“Exact fit”*
**Assembly/Installation**3%
*“Easy to put together”*
**Portability**3%
*“Great for travel”*
**Efficiency**2%
*“It works”*
### **What buyers complain about **
**Durability**17%
*“Doesn't Last”*
**Charging**12%
*“Didnt charge”*
**Quality-Overall**9%
*“Poor Quality Control”*
**Functionality-Overall**8%
*“Does not work well”*
**Socket/Port/Plug**7%
*“The usb ports don't work”*
**Noise Level**7%
*“Too loud”*
**Size-Overall**3%
*“Too short”*
**Heating**3%
*“overheated”*
**Connectivity-Overall**2%
*“nothing to connect to”*
**Value For Money**2%
*“Not even worth $1.00”*
### **Top return reasons **
**Size-Overall**24%
**Charging**15%
**Compatibility-Overall**13%
**Functionality-Overall**9%
**Socket/Port/Plug**9%
**Value For Money**5%
**Advertised Vs Actual Product**5%
**Defective Material/Parts**4%
**Connectivity-Overall**2%
**Quality-Overall**1%
## **Common questions**
- **Is 3 prong plug profitable to sell on Amazon United States?**
- The niche generates $71K/yr across 39 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -4.2%. Flapen's verdict: Skip it (49/100).
- **How competitive is the 3 prong plug niche?**
- 31 brands and 71 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 50% of demand.
- **What do buyers complain about in 3 prong plug?**
- Top complaints mined from reviews: Durability, Charging, Quality-Overall. The return rate is 1.6%.
- **When does demand for 3 prong plug peak?**
- Demand peaks in Nov–Dec; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the 3 prong plug niche?**
- Listings span $3.71–$22.66; the average listing price is $9.21 (sweet spot $15–$100). The average incumbent carries 9,744 reviews — the moat a new listing must climb.
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