---
title: "L5-30r — $72K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/l5-30r"
last_updated: "2026-08-11T09:38:46.316Z"
locale: en
meta:
description: "Niche score 54/100 · $72K/yr market · 50K searches/yr · $20.23 avg price. Soft demand (-17.1% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · $72K/yr market · 50K searches/yr · $20.23 avg price. Soft demand (-17.1% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "L5-30r — $72K/yr Amazon US Niche (2026) - Flapen"
---
# **l5-30r**
**Worth a look**
Shows a fragmented shelf (top 5 take 24% of clicks), but soft demand (-17.1% this quarter) keeps it on the watch list.
Market size 18Growth 16Conversion 76Competition 91Returns 44Price range 86Avg price 88Brand share 85Review moat 82Quality gap 24
**Competition**
**Great****24%**
top-5 click share — an open shelf
**Avg price**
**Great****$20.23**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$6.95–$75.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Great****50%**
top-5 brand share — no brand owns this niche
**Review moat**
**Great****369.83**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Great****7.2%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Okay****3.5%**
return rate — above 5% kills the launch gate
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$72K**
$72K/yr · 50K searches
**Growth**
**Bad****-17.1%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, l5-30r is a $72K/yr Amazon United States market (50K searches/yr). The top 5 brands hold 50% of demand. Demand peaks in Jan. Verdict: Worth a look — 54/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **l5-30r market data**
- **Units sold / yr**
- **4K–5K**
- avg 0–100/product
- **Revenue / yr**
- **$81K–$101K**
- units × avg price
- **Conversion rate**
- **7.2%**
- **Avg BSR**
- **#483**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **77%**
- **Out of stock**
- **3.4%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **174 days**
## **Competition & brand share**
Clicks spread well past the top 5 (24% combined) — an open shelf where new products get seen.
**Brands**
**43 **▲rising
**Sellers**
**122**
**Top-5 brand share**
**50%**
Top 20: 86%
**Top-5 click share**
**24%**
Top 20: 61%
**Open market**
**46%**
- ELEGRP16% - MECMO16% - ENERLITES7% - Leviton5% - Conable5% - M1A25%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -17.1% search growth over the last 90 days.
4K3KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/l5-30r/trend)
## **Top l5-30r search terms**
- **l5-30r**13K/yr-8.5%5.7% conv. - **l5-30p**13K/yr-26.8%4.8% conv. - **l5-30r adapter**8K/yr+6.2%5.7% conv. - **nema l5-30r**5K/yr-17.9%5.7% conv. - **nema l5-30p**5K/yr-23.8%4.7% conv. - **l5-30**4K/yr-24.4%5.3% conv. - **l5-30p adapter**3K/yr-34.5%6.2% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/l5-30r/search-terms)
## **Top l5-30r 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%2%$1K4%$3K6%$4K8%$6K1101001K 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**ELEGRP NEMA L5-30P Locking Plug Generator Twist Lock Adapter Plug 30 Amp 125V 2 Pole 3 Wire Grounding Industrial Grade Heavy Duty UL Listed (1 Pack Black/White)**ELEGRP**$8.98**4.7★561 rev](https://www.amazon.com/dp/B08CXJZZY4) [2**ENERLITES NEMA L5-30P Locking Plug Connector for Generator Twist Lock Male Plug 30 Amp 125 Volt 2 Pole 3 Wire Grounding Industrial Grade Heavy Duty UL Listed 66450-BK Black**ENERLITES**$9.91**4.7★338 rev](https://www.amazon.com/dp/B01E4DFQ2U) [3**MECMO 30A 125V NEMA L5-30P Generator Locking Plug UL Listed 3 Prong Twist Lock RV Marine Generator Male Plug Connector 30 Amp 125 Volt 2 Pole 3 Wire Grounding Industrial Grade Heavy Duty**MECMO**$11.86**4.1★18 rev](https://www.amazon.com/dp/B0FXXFS62L) [4**30 Amp to 15/20 Amp Generator Adapter - Locking Cord Nema L5-30P Male to 3X 5-20R Female 1.5 FT Household Outlet Female**M1A2**$19.79**4.7★989 rev](https://www.amazon.com/dp/B09P3DS2GL) [5**MECMO NEMA L5-30P to TT-30R 30 Amp RV Adapter UL Listed Portable Compact Adaptor 3 Prong 30A 125V Twist Locking Generator Plug L5-30 to TT-30 for 30Amp RV Trailer Camper**MECMO**$12.69**4.7★272 rev](https://www.amazon.com/dp/B0DYVDRD44)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**2-Pack Nema L5-30P Locking Plug 30 amp 125 Volt L5 30P Twist Lock Male Plug 2 Pole 3 Wire Industrial Grade Heavy-Duty AC Power Connector ETL CertifiedBlack/White**HUARLPLUG**$13.87**18 rev8mo ago](https://www.amazon.com/dp/B0FZTP4TFV) [**MECMO 30A/125V NEMA L5-30P & L5-30R Generator Locking Plug and Connector 3 Prong Twist Lock RV Marine Male & Female Adapter 30 Amp 125 Volt 2 Pole 3 Wire Grounding Industrial Grade Heavy Duty**MECMO**$18.37**42 rev8mo ago](https://www.amazon.com/dp/B0FY267FS6) [**MECMO 30A 125V NEMA L5-30P Generator Locking Plug UL Listed 3 Prong Twist Lock RV Marine Generator Male Plug Connector 30 Amp 125 Volt 2 Pole 3 Wire Grounding Industrial Grade Heavy Duty**MECMO**$11.86**18 rev8mo ago](https://www.amazon.com/dp/B0FXXFS62L) [**MECMO 30A 125V NEMA L5-30C Generator Locking Connector ETL Listed 3 Prong Twist Lock RV Marine L5-30R Female Adapter Plug 30 Amp 125 Volt 2 Pole 3 Wire Grounding Industrial Grade Heavy Duty**MECMO**$11.80**20 rev8mo ago](https://www.amazon.com/dp/B0FXXFQWV8) [**ELEGRP 30 Amp to 110 RV Adapter NEMA 5-15P to NEMA L5-30R Twist Lock Generator Cord Heavy Duty STW 10/3 AWG 125V Electrical Dogbone Plug Converter for Travel Trailer Camper UL Standard Compliant**ELEGRP**$19.13**17 rev10mo ago](https://www.amazon.com/dp/B0FQJGSN2Q)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**MECMO 30A 125V NEMA L5-30C Generator Locking Connector ETL Listed 3 Prong Twist Lock RV Marine L5-30R Female Adapter Plug 30 Amp 125 Volt 2 Pole 3 Wire Grounding Industrial Grade Heavy Duty**MECMO**$11.80**4.5★**▲ 267%**](https://www.amazon.com/dp/B0FXXFQWV8) [**ELEGRP 30 Amp Generator Adapter Cord NEMA L5-30P to TT-30R Generator to RV Adapter 3 Prong Twist Lock Male to RV Female Receptacle Heavy Duty Dogbone Electrical Converter for Travel Trailer Camper**ELEGRP**$17.43**4.8★**▲ 241%**](https://www.amazon.com/dp/B0FQJ6CMR8) [**ELEGRP 30 Amp to 110 RV Adapter NEMA 5-15P to NEMA L5-30R Twist Lock Generator Cord Heavy Duty STW 10/3 AWG 125V Electrical Dogbone Plug Converter for Travel Trailer Camper UL Standard Compliant**ELEGRP**$19.13**4.9★**▲ 212%**](https://www.amazon.com/dp/B0FQJGSN2Q) [**MECMO 30A 125V NEMA L5-30P Generator Locking Plug UL Listed 3 Prong Twist Lock RV Marine Generator Male Plug Connector 30 Amp 125 Volt 2 Pole 3 Wire Grounding Industrial Grade Heavy Duty**MECMO**$11.86**4.1★**▲ 148%**](https://www.amazon.com/dp/B0FXXFS62L) [**Leviton 30 Amp 125 Volt NEMA L5-30P 2P 3W Locking Plug Industrial Grade Grounding 2611-B Black**Leviton**$14.05**4.7★**▲ 138%**](https://www.amazon.com/dp/B003AUIN74)
**~~View all trending →~~**
## **What buyers say about l5-30r**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**25%
*“Excellent product”*
**Advertised Vs Actual Product**13%
*“As advertised”*
**Size-Overall**9%
*“Fit as it should”*
**Value For Money**8%
*“Great Value”*
**Socket/Port/Plug**7%
*“Pretty good plug for my camper”*
**Efficiency**5%
*“Works perfectly”*
**Durability**4%
*“It seems very well made and durable and I believe it will last for years”*
**Assembly/Installation**4%
*“Easy install”*
**Ease Of Use**3%
*“Very easy to use”*
**Strength**3%
*“Heavy Duty”*
### **What buyers complain about **
**Size-Overall**15%
*“Very shortv”*
**Quality-Overall**12%
*“It's garbage”*
**Defective Material/Parts**4%
*“Camper parts”*
**Amplification**4%
*“Dosnt work on 30 Amp, 115 v RV connectors”*
**Durability**3%
*“Every time I used it I was worried it would break. but to be fair, it didn't”*
**Grip**3%
*“Does not hold tight”*
**Certifications**3%
*“To start, if MECMO really is the manufacturer of these products like this listing says, then neither of these items are legitimately ETL or UL certified”*
**Instructions/User Manual/Troubleshooting**3%
*“this is poor documentation”*
**Assembly/Installation**3%
*“which makes initial set up a bit confusing”*
**Heating**2%
*“severe overheating”*
### **Top return reasons **
**Size-Overall**44%
**Compatibility-Overall**22%
**Connectivity-Overall**5%
**Socket/Port/Plug**5%
**Advertised Vs Actual Product**4%
**Functionality-Overall**4%
**Value For Money**3%
**Add-Ons/Attachments**2%
**Defective Material/Parts**2%
**Amplification**2%
## **Common questions**
- **Is l5-30r profitable to sell on Amazon United States?**
- The niche generates $72K/yr across 75 tracked products. 6 of 14 products launched in the last 360 days are still selling. 90-day search growth is -17.1%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the l5-30r niche?**
- 43 brands and 122 sellers compete. The top 5 products take 24% of clicks and top 5 brands hold 50% of demand.
- **What do buyers complain about in l5-30r?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Defective Material/Parts. The return rate is 3.5%.
- **When does demand for l5-30r peak?**
- Demand peaks in Jan; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the l5-30r niche?**
- Listings span $6.95–$75.12; the average listing price is $20.23 (sweet spot $15–$100). The average incumbent carries 370 reviews — the moat a new listing must climb.
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