relay box
Skip itA small market ($78K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$30.53avg listing price — sweet spot $15–$100
Price range
Incredible$17.70–$62.88cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great449.56avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Returns
Good2.9%return rate — above 6% kills the launch gate
Competition
Okay58%top-5 click share — leaders hold, buyers still browse
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Conversion
Bad1.9%search→purchase rate — share of searches ending in a sale
Growth
Bad-5.6%90-day search growth — must beat 0% to launch
Market size
Bad$78K$78K/yr · 134K searches
Competition
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.Brands
9 falling
Sellers
14
Top-5 brand share
83%
Open market
10%
- DAIERTEK39%
- ONLINE LED STORE14%
- Weasch11%
- RVBOATPAT11%
- FASTSTORM7%
- Nilight7%
- Open — no brand owns it (3 brands, 10%)
Product shelf
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
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$25.824.5★505 rev
![True Mods Waterproof 12V Fuse Relay Box Block Kit w/Pre-Wired Harness [12 & 16AWG] 6 Gang Bosch Style 5Pin 30A/40A Universal Relay & Fuse Panel for DC Auto Automotive Vehicle Car Marine Boat Jeep UTV](https://m.media-amazon.com/images/I/51nb8T58EdL.jpg)
True Mods Waterproof 12V Fuse Relay Box Block Kit w/Pre-Wired Harness [12 & 16AWG] 6 Gang Bosch Style 5Pin 30A/40A Universal Relay & Fuse Panel for DC Auto Automotive Vehicle Car Marine Boat Jeep UTV
ONLINE LED STORE$48.504.5★254 rev
Weasch 12V 6 Way Pre-Wired Fuse Relay Box Kit with Two 80A 4-Pin Relays
Weasch$17.704.4★185 rev
FASTSTORM Fuse Relay Box Relay Block Box Built-in Diodes 6 Way 12 AWG Pre-Wired Waterproof Relay Panel with Relays and Terminals ATC/ATO Fuses Automotive Relay Box 12V for Automotive Car Marine Boat
FASTSTORM$25.564.4★36 rev
RVBOATPAT 12V Fuse Relay Box 6 Way Relay Fuse Box Pre-Wired Waterproof Relays Box with 6 Relays and 12 ATC/ATO Fuses Relay Panel for Automotive Car Marine Boat
RVBOATPAT$26.504.6★325 rev
Newest
by launch date
DaierTek 12V 3 Way Waterproof Relay Box Pre-Wired Fuse and Relay Box 3x4 Pin 40A Relay and 3 ATC/ATO Blade Fuse for Automotive Cars Truck Boat Upgrade
DAIERTEK$29.1115 rev
DaierTek 12V Fuse Box and Relay Block 8 Relay 12 ATC/ATO Blade Fuse Pre-Wired Panel Dustproof Pre-Wired Fuse Relay Box for Automotive Car Marine Boat
DAIERTEK$55.99132 rev
FASTSTORM Fuse Relay Box Relay Block Box Built-in Diodes 6 Way 12 AWG Pre-Wired Waterproof Relay Panel with Relays and Terminals ATC/ATO Fuses Automotive Relay Box 12V for Automotive Car Marine Boat
FASTSTORM$25.5636 rev
Weasch 12V 6 Way Pre-Wired Fuse Relay Box Kit with 4 x 40A 4-Pin Relays
Weasch$25.8937 rev
DaierTek Relay Box 12V 10 Way Relay Block and 10 Way ATC/ATO Blade Fuse Panel Pre-Wired Dustproof Fuse Relay Box for Automotive Car Marine Boat
DAIERTEK$62.88132 rev
Trending
90-day click momentumDaierTek 12V Fuse Box and Relay Block 8 Relay 12 ATC/ATO Blade Fuse Pre-Wired Panel Dustproof Pre-Wired Fuse Relay Box for Automotive Car Marine Boat
DAIERTEK$55.994.1★
FASTSTORM Fuse Relay Box Relay Block Box Built-in Diodes 6 Way 12 AWG Pre-Wired Waterproof Relay Panel with Relays and Terminals ATC/ATO Fuses Automotive Relay Box 12V for Automotive Car Marine Boat
FASTSTORM$25.564.4★
DaierTek 12V 3 Way Waterproof Relay Box Pre-Wired Fuse and Relay Box 3x4 Pin 40A Relay and 3 ATC/ATO Blade Fuse for Automotive Cars Truck Boat Upgrade
DAIERTEK$29.113.8★
DaierTek 12V Relay Box 6 Slots Fuse Relay Block 6 Slots ATC/ATO Fuse and Relay Block with Relay Universal Fuse and Relay Box Kit for Truck Marine Boat
DAIERTEK$17.984.3★
Weasch 12V 6 Way Pre-Wired Fuse Relay Box Kit with Two 80A 4-Pin Relays
Weasch$17.704.4★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -5.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent quality product”
“Easy to install”
“Decent for the price”
“design is good”
“Works as advertised”
“Works perfectly”
“It saves a lot of time”
“The box is waterproof”
“Super clean”
“much easier than mounting discrete componenets”
What buyers complain about
“No Instructions”
“Quality control is poor”
“Didn't work”
“NOT WATERPROOF”
“Cheap wasn't even worth the cost”
“LID will break almost immediately”
“are so small”
“The plastic snap covers are brittle”
“Very cheap plastic”
“Bad parts”