---
title: "Negative Bus Bar — $56K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/electronics/negative-bus-bar"
last_updated: "2026-08-09T04:43:28.673Z"
locale: en
meta:
description: "Niche score 48/100 · $56K/yr market · 39K searches/yr · $23.78 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $56K/yr market · 39K searches/yr · $23.78 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Negative Bus Bar — $56K/yr Amazon US Niche (2026) - Flapen"
---
# **negative bus bar**
**Skip it**
A small market ($56K/yr) — this niche doesn't clear our bar today.
Market size 14Growth 52Conversion 67Competition 53Returns 69Price range 89Avg price 95Brand share 16Review moat 68Quality gap 18
**Avg price**
**Incredible****$23.78**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.28–$88.46**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Good****2.2%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****783.44**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****6.1%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Good****+22.7%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
**Market size**
**Bad****$56K**
$56K/yr · 39K searches
According to Flapen's Amazon United States niche tracking, negative bus bar is a $56K/yr Amazon United States market (39K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Oct. Verdict: Skip it — 48/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **negative bus bar market data**
- **Units sold / yr**
- **3K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$59K–$71K**
- units × avg price
- **Conversion rate**
- **6.1%**
- **Avg BSR**
- **#46**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **68%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **49 months**
- **Avg seller age**
- **168 days**
## **Competition & brand share**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**9 **▼falling
**Sellers**
**99**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**53%**
Top 20: 94%
**Open market**
**4%**
- Blue Sea Systems57% - DAIERTEK13% - RVBOATPAT10% - Aienxn7% - RVMARINEPAT6% - Joinfworld3% - Open — no brand owns it (3 brands, 4%)
## **Demand & seasonality**
Weekly Amazon search volume, last 57 weeks — +22.7% search growth over the last 90 days.
2K1KPrime Day '25Spike '25 seasonJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Oct · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/electronics/negative-bus-bar/trend)
## **Top negative bus bar search terms**
- **blue sea bus bar**14K/yr+12.6%3.6% conv. - **negative bus bar**8K/yr+28.8%4.0% conv. - **ground bus bar 12v**5K/yr+9.6%3.8% conv. - **marine ground bus bar**4K/yr+61.3%6.1% conv. - **negative bus bar 12v marine**4K/yr+27.5%6.9% conv. - **blue sea systems bus bar**4K/yr+25.5%3.4% conv. [**All search terms **](https://flapen.com/research/us/electronics/negative-bus-bar/search-terms)
## **Top negative bus bar 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%$3K10%$6K15%$8K20%$11K101001K10K 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**Blue Sea Systems 2300 150 Amp Common BusBar with 10 screws and a cover**Blue Sea Systems**$21.62**4.8★1,368 rev](https://www.amazon.com/dp/B0091VHLW4) [2**Blue Sea Systems 2127 250 Amp MaxiBus BusBar with 4 studs**Blue Sea Systems**$44.49**4.7★267 rev](https://www.amazon.com/dp/B006VELFDK) [3**DAIERTEK Negative Bus Bar 12V Marine 4 x 5/16 (M8) Terminal Studs 6 x M4 (#8) Terminal Screws Gound Bus Bar Black Negative Power Distribution Block for Automotive Boat Solar System**DAIERTEK**$13.45**4.8★637 rev](https://www.amazon.com/dp/B0B17X95J2) [4**RVBOATPAT Power Distribution Block 12V 150A 1/4 Stud Marine Bus Bar 12 Volt DC Battery Busbar for Boat Automotive Solar Wiring**RVBOATPAT**$17.21**4.7★680 rev](https://www.amazon.com/dp/B0CF1N8FM8) [5**RVMARINEPAT 12V Bus Bar 250A Power Distribution Block 12 Volt Busbars 6 x 5/16 (M8) Terminal Studs Positive & Negative for Car Marine Solar Systems**RVMARINEPAT**$26.54**4.8★202 rev](https://www.amazon.com/dp/B0DGGKXX3C)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**RVMARINEPAT 12V Bus Bar 250A Power Distribution Block 12 Volt Busbars 6 x 5/16 (M8) Terminal Studs Positive & Negative for Car Marine Solar Systems**RVMARINEPAT**$26.54**202 rev1y ago](https://www.amazon.com/dp/B0DGGKXX3C) [**Aienxn Marine Bus Bar 12V 150A 1/4 Stud Power Distribution Block 12 Volt DC Battery Busbar Automotive Buss Bar 12v for Car Boat and Solar Wiring (Black)**Aienxn**$10.00**587 rev1y ago](https://www.amazon.com/dp/B0DCYWP6BW) [**DAIERTEK Bus Bar 12V 150A Mini Power Distribution Block Max 48V DC/300V AC with Cover 4 x 5/16 Posts for Marine Automotive Solar Systems -Negative+Positive**DAIERTEK**$19.49**637 rev2y ago](https://www.amazon.com/dp/B0D2NDXQHN) [**Aienxn Marine Bus Bar 12V 150A 1/4 Stud Power Distribution Block 12 Volt DC Battery Busbar Automotive Buss Bar 12v for Car Boat and Solar Wiring (Black+Red)**Aienxn**$15.47**587 rev2y ago](https://www.amazon.com/dp/B0CZKMHGBD) [**Linkstyle Negative Bus Bar 12V Marine Gound Battery BusBar Power Distribution Block with 2X M6 Studs 6X M4 Screws Terminals for Automotive Car Boat Caravan RV**Linkstyle**$12.01**148 rev2y ago](https://www.amazon.com/dp/B0B8ZJB28S)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Blue Sea Systems 2307 150 Amp Common BusBar with 4 studs and a cover With Cover 150A**Blue Sea Systems**$22.07**4.4★**▲ 61%**](https://www.amazon.com/dp/B0051P1L52) [**RVBOATPAT 275A Marine Bus Bar 12V Power Distribution Block 2 x 5/16 Terminal Studs and 14 x #8 Screws Positive and Ground Battery BusBar for Automotive Car Boat**RVBOATPAT**$24.06**4.6★**▲ 58%**](https://www.amazon.com/dp/B0D41RNMG3) [**Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8 Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive Car Boat Solar Wiring - Negative&Positive**Joinfworld**$21.00**4.7★**▲ 44%**](https://www.amazon.com/dp/B0B2JGKTFN) [**Blue Sea Systems 2127 250 Amp MaxiBus BusBar with 4 studs**Blue Sea Systems**$44.49**4.7★**▲ 41%**](https://www.amazon.com/dp/B006VELFDK) [**Blue Sea Systems 2314 100 Amp Mini BusBar with 5 screws and a cover**Blue Sea Systems**$16.15**4.8★**▲ 38%**](https://www.amazon.com/dp/B000OTJ89Q)
**~~View all trending →~~**
## **What buyers say about negative bus bar**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**34%
*“Excellent product”*
**Advertised Vs Actual Product**12%
*“Works as advertised”*
**Value For Money**9%
*“worth the price”*
**Size-Overall**5%
*“Nice size”*
**Design-Overall**4%
*“Nice tidy look”*
**Strength**3%
*“Well built”*
**Assembly/Installation**3%
*“Easy to install”*
**Weight Heavy**3%
*“Heavy duty product”*
**Durability**3%
*“Seems durable”*
**Efficiency**3%
*“Seems to work well”*
### **What buyers complain about **
**Size-Overall**17%
*“Wrong size”*
**Advertised Vs Actual Product**8%
*“Poor description”*
**Design-Overall**7%
*“It's just a weak design”*
**Ease Of Use**7%
*“Inconvenient”*
**Assembly/Installation**7%
*“hard to hook up”*
**Quality-Overall**6%
*“Also, the lugs are not the best quality,”*
**Rusts/Corrodes**4%
*“Starting to corrode”*
**Product Condition**3%
*“Receiving returned items advertised and new”*
**Material Quality**3%
*“Terminal bus is made of inferior bronze material”*
**Thickness**3%
*“it is barely held together with the thinnest cheapest plastic possible”*
### **Top return reasons **
**Size-Overall**68%
**Advertised Vs Actual Product**7%
**Defective Material/Parts**4%
**Compatibility-Overall**4%
**Value For Money**3%
**Functionality-Overall**2%
**Assembly/Installation**1%
**Quality-Overall**1%
**Product Condition**1%
**Connectivity-Overall**1%
## **Common questions**
- **Is negative bus bar profitable to sell on Amazon United States?**
- The niche generates $56K/yr across 25 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +22.7%. Flapen's verdict: Skip it (48/100).
- **How competitive is the negative bus bar niche?**
- 9 brands and 99 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in negative bus bar?**
- Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Design-Overall. The return rate is 2.2%.
- **When does demand for negative bus bar peak?**
- Demand peaks in Oct; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the negative bus bar niche?**
- Listings span $9.28–$88.46; the average listing price is $23.78 (sweet spot $15–$100). The average incumbent carries 783 reviews — the moat a new listing must climb.
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