---
title: "Relay — $452K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/relay"
last_updated: "2026-08-10T04:50:11.431Z"
locale: en
meta:
description: "Niche score 44/100 · $452K/yr market · 827K searches/yr · $13.71 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $452K/yr market · 827K searches/yr · $13.71 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Relay — $452K/yr Amazon US Niche (2026) - Flapen"
---
# **relay**
**Skip it**
Soft demand (-13.9% this quarter) — this niche doesn't clear our bar today.
Market size 58Growth 18Conversion 50Competition 37Returns 80Price range 61Avg price 64Brand share 21Review moat 62Quality gap 25
**Returns**
**Great****1.8%**
return rate — above 5% kills the launch gate
**Avg price**
**Good****$13.71**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****1,004.57**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$5.92–$29.41**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$452K**
$452K/yr · 827K searches
**Conversion**
**Okay****4.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Growth**
**Bad****-13.9%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, relay is a $452K/yr Amazon United States market (827K searches/yr). The top 5 brands hold 92% of demand. Verdict: Skip it — 44/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **relay market data**
- **Units sold / yr**
- **25K–30K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$343K–$411K**
- units × avg price
- **Conversion rate**
- **4.0%**
- **Avg BSR**
- **#10**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.9%**
- **Avg brand age**
- **57 months**
- **Avg seller age**
- **160 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**9 **▼falling
**Sellers**
**16**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 97%
**Open market**
**5%**
- iRhapsody36% - Nilight21% - Gebildet19% - AEDIKO9% - ecocstm7% - Weasch3% - Open — no brand owns it (3 brands, 5%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -13.9% search growth over the last 90 days.
30K20KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/automotive/relay/trend)
## **Top relay search terms**
- **relay**345K/yr-30.0%2.3% conv. - **relays**165K/yr-21.6%0.8% conv. - **12v relay**72K/yr+1.1%5.0% conv. - **relay 12v**39K/yr-5.9%4.4% conv. - **rele**24K/yr+61.3%0.1% conv. - **relay kit**23K/yr+19.5%4.1% conv. - **automotive relay**23K/yr-0.2%5.2% conv. - **12 volt relay**22K/yr+0.1%5.0% conv. - **40 amp relay**17K/yr+6.8%4.2% conv. - **relay switch**25K/yr-29.1%1.1% conv. [**All search terms **](https://flapen.com/research/us/automotive/relay/search-terms)
## **Top relay 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%10%$45K20%$90K30%$136K40%$181K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay Kit with Heavy-Duty Pigtail 5-PIN SPDT Automotive Relay**iRhapsody**$25.55**4.7★3,540 rev](https://www.amazon.com/dp/B074FSZWVT) [2**Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle**Gebildet**$8.04**4.7★2,361 rev](https://www.amazon.com/dp/B078T8CMF6) [3**Nilight 50003R Automotive Set 5-Pin 30/40A 12V SPDT with Interlocking Relay Socket and Wiring Harness-5 Pack 2 Years Warranty**Nilight**$12.53**4.6★3,431 rev](https://www.amazon.com/dp/B0748F1JK4) [4**irhapsody 4-pin 40/30AMP 12V DC Waterproof Relay with Heavy Duty Wires SPST Automotive Relay Pack of 1**iRhapsody**$10.03**4.7★983 rev](https://www.amazon.com/dp/B08D8TSMFV) [5**4 PCS Relays 5 Pin Relay 40A Waterproof Car Relays 12V Relay Switch for Electric Cooling Fans Motor Starters Automotive Taillights**ecocstm**$8.52**4.3★302 rev](https://www.amazon.com/dp/B0DC9SL6F9)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**4 PCS Relays 5 Pin Relay 40A Waterproof Car Relays 12V Relay Switch for Electric Cooling Fans Motor Starters Automotive Taillights**ecocstm**$8.52**302 rev1y ago](https://www.amazon.com/dp/B0DC9SL6F9) [**Weasch Waterproof Relay Kit 12V 40A 4 Pin SPST Heavy Duty 14 AWG Tinned Copper Wires Automotive Relay and Harness Set for Automotive Car Marine Boat**Weasch**$6.76**132 rev2y ago](https://www.amazon.com/dp/B0D8636NZH) [**Weasch 2 Pack JD1912 Car Relay 12V 40A 4 Pins SPST Automotive Switches and Starters Waterproof Relay for Boat Tractor Truck Motorcycle (2)**Weasch**$5.96**207 rev2y ago](https://www.amazon.com/dp/B0D6KF182K) [**DaierTek 12V Relay Box 6 Way12 AWG Pre-Wired Waterproof Relay Box 6 Slot ATC/ATO Fuse Relay Block Universal Relay Panel for Automotive Car Marine Boat**DAIERTEK**$25.82**505 rev2y ago](https://www.amazon.com/dp/B0CP56SXNT) [**irhapsody 12vdc 30amp 4-pin Spst Multi-Purpose Starter Relay Automotive Replacement Relays**iRhapsody**$12.76**376 rev2y ago](https://www.amazon.com/dp/B0CGXVQSGZ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Weasch Waterproof Relay Kit 12V 40A 4 Pin SPST Heavy Duty 14 AWG Tinned Copper Wires Automotive Relay and Harness Set for Automotive Car Marine Boat**Weasch**$6.76**4.8★**▲ 166%**](https://www.amazon.com/dp/B0D8636NZH) [**AEDIKO 10pcs DC 5V Relay Module - 1 Channel Relay Switch Board with Optocoupler Isolation High or Low Level Trigger**AEDIKO**$12.11**4.4★**▲ 106%**](https://www.amazon.com/dp/B0BHLDW9G5) [**irhapsody 12vdc 30amp 4-pin Spst Multi-Purpose Starter Relay Automotive Replacement Relays**iRhapsody**$12.76**4.6★**▲ 100%**](https://www.amazon.com/dp/B0CGXVQSGZ) [**AEDIKO 4pcs DC 5V Relay Module - 1 Channel Relay Switch Board with Optocoupler Isolation High or Low Level Trigger**AEDIKO**$7.07**4.5★**▲ 81%**](https://www.amazon.com/dp/B095YD3732) [**irhapsody 12v 30A 5-pin Spdt Multi-Purpose Starter Relay**iRhapsody**$12.80**4.6★**▲ 30%**](https://www.amazon.com/dp/B0BJ9QY6T8)
**~~View all trending →~~**
## **What buyers say about relay**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**29%
*“The build quality is impressive for the price point”*
**Value For Money**17%
*“Reasonable price”*
**Efficiency**12%
*“Works flawlessly”*
**Advertised Vs Actual Product**10%
*“Worked as it should”*
**Assembly/Installation**5%
*“Easy to install”*
**Size-Overall**4%
*“fit perfect”*
**Water Resistance**2%
*“Easy to use, waterproof, solid construction”*
**Ease Of Use**2%
*“Easy to use”*
**Flexibility**2%
*“Versatile”*
**Functionality-Overall**1%
*“The product is still very functional”*
### **What buyers complain about **
**Quality-Overall**15%
*“not as good as you might think from the description”*
**Size-Overall**11%
*“Does not fit”*
**Advertised Vs Actual Product**11%
*“Falsely advertised”*
**Instructions/User Manual/Troubleshooting**7%
*“No Instructions”*
**Functionality-Overall**6%
*“still no function”*
**Compatibility-Overall**5%
*“Not for starter relay 08-12 Sedona”*
**Durability**5%
*“Dead wthin a year”*
**Noise Level**4%
*“Loud”*
**Amplification**3%
*“No Way These Are 80 Amp Relays”*
**Connectivity-Overall**2%
*“And dont come at me with connections or correct wiring”*
### **Top return reasons **
**Size-Overall**34%
**Compatibility-Overall**21%
**Functionality-Overall**13%
**Advertised Vs Actual Product**7%
**Defective Material/Parts**5%
**Value For Money**4%
**Mounting**3%
**Water Resistance**2%
**Connectivity-Overall**2%
**Quality-Overall**2%
## **Common questions**
- **Is relay profitable to sell on Amazon United States?**
- The niche generates $452K/yr across 23 tracked products. 90-day search growth is -13.9%. Flapen's verdict: Skip it (44/100).
- **How competitive is the relay niche?**
- 9 brands and 16 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 92% of demand.
- **What do buyers complain about in relay?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Advertised Vs Actual Product. The return rate is 1.8%.
- **When does demand for relay peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the relay niche?**
- Listings span $5.92–$29.41; the average listing price is $13.71 (sweet spot $15–$100). The average incumbent carries 1,005 reviews — the moat a new listing must climb.
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