It is specified for 10 to 100w solar panel, cannot they be used with larger solar panels as 400w. if no, why ? what would you suggest instead ?

this can support 400w panel but need evaluate the weight of panel. we advise use it for Max100-200w panel

What is thickness of bracket, long side length, short side length, and width of bracket?

I would have to get on my roof to measure, but the thickness is substantial an sturdy.. plenty of height to mount to you solar panel and elevate over the roof. I used them to mount panels on a metal roof of a dock and plenty of elevation to raise above the corrugation

will these work for a curved rv roof on a travel trailer?

Actually, these solar panel mounting brackets can support curved RV roof assembly . but need calculate the radians of RV roof and adjust the angel of your panels. These brackets can adjust the stroke position.

What is its slit width to ensure my existing bolt goes through?

L Solar mounting bracket slit width is 48mm L x 8mm W. Hope it can fit your existing bolt goes through.

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Solar Panel Mounting L Bracket 4 Units | for RV Boat Off Grid Roof, Support 10w/20w/50w/80w/100W Solar Panel

Solar Panel Mounting L Bracket 4 Units | for RV Boat Off Grid Roof, Support 10w/20w/50w/80w/100W Solar Panel

Product ID: 70728411

Details

Brand
Smarkey
Color
Silver
Finish Type
Powder Coated
Item Weight
16 ounces
Material
Aluminum

⚡Supports 10W-100W solar panels

🔧4 durable L brackets included

🛠️Lightweight high-quality aluminum

€ 29.48

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Description

🔆 Elevate your solar game—mount smarter, live greener!

BUILT TO LAST - Crafted from powder-coated aluminum for corrosion resistance and maintenance-free durability.
VERSATILE MOUNTING - Compatible with on-grid and off-grid systems, plus other manufacturers’ rails and flashing kits.
LIGHTWEIGHT YET STRONG - Weighing just 16 ounces per bracket, it offers robust support without adding bulk.
EFFORTLESS INSTALLATION - Mount your solar panels on RVs, boats, or flat roofs in minutes—no hassle, no fuss.
UNIVERSAL COMPATIBILITY - Works seamlessly with 10W to 100W panels and fits both composite and metal roofs.

The Smarkey Solar Panel Mounting L Bracket set includes 4 lightweight, powder-coated aluminum brackets designed to securely support 10W to 100W solar panels on RVs, boats, and flat roofs. Compatible with various roof types and mounting systems, these maintenance-free brackets ensure easy installation and long-lasting durability for both on-grid and off-grid solar setups.

Specifications

ASIN	B07CR9QS4V
Best Sellers Rank	#288,288 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,721 in Solar & Wind Power Parts & Accessories
Brand Name	Smarkey
Color	Silver
Customer Reviews	4.5 4.5 out of 5 stars (61)
Finish Types	Powder Coated
Item Depth	1 inches
Item Weight	16 ounces
Manufacturer	Smarkey
Material Type	Aluminum
Model Number	e4555375-d2da-4ea7-8c08-e0ce6b76d378
Mounting Type	Roof Mount
UPC	734010072985
Unit Count	4 Count

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€ 29.48

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In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

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