watermelon lights
Worth a lookShows a thin review moat (69 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Review moat
Incredible68.84avg incumbent reviews — the moat a new listing must climb
Avg price
Great$52.04avg listing price — sweet spot $15–$100
Competition
Great32%top-5 click share — an open shelf
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Returns
Great1.8%return rate — above 5% kills the launch gate
Price range
Good$14.26–$132.77cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$404K$404K/yr · 664K searches
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Growth
Bad-16.8%90-day search growth — must beat 0% to launch
Conversion
Bad1.2%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, watermelon lights is a $404K/yr Amazon United States market (664K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Nov. Verdict: Worth a look — 57/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
watermelon lights market data
- Units sold / yr
- 10K–13K
- avg 250–500/product
- Revenue / yr
- $520K–$651K
- units × avg price
- Conversion rate
- 1.2%
- Avg BSR
- #178
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 98%
- Out of stock
- 0.9%
- Avg brand age
- 30 months
- Avg seller age
- 193 days
Competition & brand share
Clicks spread well past the top 5 (32% combined) — an open shelf where new products get seen.Brands
14 rising
Sellers
17
Top-5 brand share
87%
Top 20: 100%
Top-5 click share
32%
Top 20: 70%
Open market
9%
- Partsam62%
- JZYZQBX10%
- Okerny6%
- Suacopzar5%
- Ctopkatuo4%
- XtraGlow4%
- Open — no brand owns it (8 brands, 9%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -16.8% search growth over the last 90 days.Peak months: Nov · busiest ÷ quietest = 1.9×
Top watermelon lights search terms
- watermelon lights339K/yr
- partsam watermelon lights45K/yr
- mini watermelon lights35K/yr
- watermelon lights for semi truck38K/yr
- watermelon light31K/yr
- partsam27K/yr
- water melon lights27K/yr
- 3/4 watermelon lights12K/yr
- glass watermelon lights24K/yr
- grand general watermelon lights15K/yr
Top watermelon lights 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share![Partsam 2Pcs Glass Watermelon Lights [Patented] Clear Lens Amber LED Side Marker Turn Signal Lights with Bezel Replacement for Kenworth Peterbilt Freightliner Trucks](https://m.media-amazon.com/images/I/41F0j8uiMML.jpg)
Partsam 2Pcs Glass Watermelon Lights [Patented] Clear Lens Amber LED Side Marker Turn Signal Lights with Bezel Replacement for Kenworth Peterbilt Freightliner Trucks
Partsam$60.894.6★419 rev
![Partsam 2Pcs Amber Glass Lens Watermelon Lights [Patented] LED Side Marker Turn Signal Lights with Stainless Steel Bezel Replacement for Kenworth Peterbilt Freightliner](https://m.media-amazon.com/images/I/512wzT1i1aL.jpg)
Partsam 2Pcs Amber Glass Lens Watermelon Lights [Patented] LED Side Marker Turn Signal Lights with Stainless Steel Bezel Replacement for Kenworth Peterbilt Freightliner
Partsam$70.584.5★153 rev
Partsam 10 Pcs 3/4 inch LED Amber Watermelon Side Marker Dual Function Strobe + Marker Lights Clear Lens Clearance Tail Signal Warning Light for Trailer Truck RV
Partsam$36.675.0★6 rev
6PCS Amber Watermelon Lights for Semi Truck Trailer Dual Mode Steady & Strobe Cab Marker Roof Clearance Lights Durable ABS Lens Amber LED Water Melon Light for Kenworth Peterbilt Freightliner Trucks
Suacopzar$52.204.0★42 rev
![Partsam 2Pcs Glass Watermelon Lights [Patented] Clear Lens White LED Running Light with Stailess Steel Bezel Replacement for Kenworth Peterbilt Freightliner Trucks](https://m.media-amazon.com/images/I/41d0FxsVu+L.jpg)
Partsam 2Pcs Glass Watermelon Lights [Patented] Clear Lens White LED Running Light with Stailess Steel Bezel Replacement for Kenworth Peterbilt Freightliner Trucks
Partsam$65.494.6★419 rev
Newest
by launch datePartsam 10 Pcs 3/4 inch LED Amber Watermelon Side Marker Dual Function Strobe + Marker Lights Clear Lens Clearance Tail Signal Warning Light for Trailer Truck RV
Partsam$36.676 rev
Partsam 10 Pcs 3/4 inch Amber Watermelon Side Marker LED Lights 6 LED Mini Clearance Tail Griller Lights for 12V Trailer Truck RV IP65 Waterproof
Partsam$40.720 rev
10PCS Mini Watermelon Lights 3/4 Inch Dual Revolution Amber Turn Signal Marker to Red Auxiliary LED Watermelon Light IP65 Waterproof Side Clearance Tail Griller Lights for 12V Trailers Trucks RV
JZYZQBX$35.6049 rev
10PCS Mini Watermelon Lights 3/4 Inch Dual Revolution Amber Turn Signal Marker to Pinkish Purple Auxiliary LED Watermelon Light IP65 Waterproof Side Clearance Griller Lights for 12V Trailers Trucks
JZYZQBX$35.9749 rev
10PCS Mini Watermelon Lights 3/4 Inch Strobe & Constant Dual Function Amber LED Watermelon Lights IP65 Waterproof Side Clearance Tail Griller Flash Lights Turn Signal for 12V Semi Trailers Trucks RV
JZYZQBX$33.4649 rev
Trending
90-day click momentum10PCS Mini Watermelon Lights 3/4 Inch Dual Revolution Amber Turn Signal Marker to Pinkish Purple Auxiliary LED Watermelon Light IP65 Waterproof Side Clearance Griller Lights for 12V Trailers Trucks
JZYZQBX$35.973.7★
Partsam 10 Pcs 3/4 inch Amber Watermelon Side Marker LED Lights 6 LED Mini Clearance Tail Griller Lights for 12V Trailer Truck RV IP65 Waterproof
Partsam$40.720.0★
10PCS Mini Watermelon Lights 3/4 Inch Strobe & Constant Dual Function Amber LED Watermelon Lights IP65 Waterproof Side Clearance Tail Griller Flash Lights Turn Signal for 12V Semi Trailers Trucks RV
JZYZQBX$33.463.7★
10PCS Mini Watermelon Lights 3/4 Inch Dual Revolution Amber Turn Signal Marker to Blue Auxiliary LED Watermelon Light IP65 Waterproof Side Clearance Tail Griller Lights for 12V Trailers Trucks RV
JZYZQBX$35.823.7★
Partsam 10 Pcs 3/4 inch LED Amber Watermelon Side Marker Dual Function Strobe + Marker Lights Clear Lens Clearance Tail Signal Warning Light for Trailer Truck RV
Partsam$36.675.0★
What buyers say about watermelon lights
What buyers praise and complain about, mined from review topics.What buyers love
“Nice and bright”
“Good quality”
“Installation was quick”
“Great value”
“great durability”
“The waterproof design holds up fine in wet conditions”
“The color is crisp”
“This lights are made of good quality materials”
“I was impressed with how well built they are”
“Pros: Easy install, sturdy, cute”
What buyers complain about
“not durable at all”
“2 stars - Product is low quality”
“no waterproofing is apparent where the wires enter the lamp”
“Lack luster brightness”
“They dont switch color as they should”
“Not sure yet where I'm going to install them”
“These things are tiny. 1.5 diameter”
“does not do what it says”
“not working”
“Might not be the best value”
Top return reasons
Common questions
- Is watermelon lights profitable to sell on Amazon United States?
- The niche generates $404K/yr across 49 tracked products. 12 of 35 products launched in the last 360 days are still selling. 90-day search growth is -16.8%. Flapen's verdict: Worth a look (57/100).
- How competitive is the watermelon lights niche?
- 14 brands and 17 sellers compete. The top 5 products take 32% of clicks and top 5 brands hold 87% of demand.
- What do buyers complain about in watermelon lights?
- Top complaints mined from reviews: Durability, Quality-Overall, Water Resistance. The return rate is 1.8%.
- When does demand for watermelon lights peak?
- Demand peaks in Nov; the busiest month runs 1.9× the quietest.
- What does it cost to enter the watermelon lights niche?
- Listings span $14.26–$132.77; the average listing price is $52.04 (sweet spot $15–$100). The average incumbent carries 69 reviews — the moat a new listing must climb.