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 Brackets

Product ID: 70728411

Details

Color
Silver
Brand
Smarkey
Material
Aluminum
Item Weight
1 Pounds
Finish Type
Powder Coated

⚡Supports 10W-100W solar panels

🚤Versatile for RV, boat & flat roofs

🛠️Lightweight high-quality aluminum

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฿2319

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Mount your power, own your freedom!

ALL TERRAIN READY - Perfectly engineered for RVs, boats, off-grid cabins, and any flat surface—wherever your adventure takes you.
DURABLE LIGHTWEIGHT - Crafted from premium powder-coated aluminum for lasting strength without the bulk.
EFFORTLESS SOLAR SETUP - Quick, maintenance-free installation saves you time and hassle.
UNIVERSAL COMPATIBILITY - Fits 10W to 100W panels and works seamlessly with composite, metal roofs, and various rail systems.
FUTURE PROOF FLEXIBILITY - Compatible with both on-grid and off-grid solar setups, ensuring your system grows with you.

The Smarkey Solar Panel Mounting L Bracket kit includes 4 lightweight, powder-coated aluminum brackets designed for easy, maintenance-free installation. Supporting solar panels from 10W to 100W, these versatile mounts fit RVs, boats, and flat roofs, compatible with multiple rail and flashing systems for both on-grid and off-grid solar configurations.

Specifications

Item Depth	1 inches
Mounting Type	Roof Mount
Manufacturer	Smarkey
UPC	734010072985
Item Weight	1 pounds
Package Dimensions	7.09 x 5.71 x 1.69 inches
Item model number	e4555375-d2da-4ea7-8c08-e0ce6b76d378
Is Discontinued By Manufacturer	No
Finish	Powder Coated
Maximum Power	50 Watts
Batteries Included?	No
Batteries Required?	No

Reviews

J**Z

Really strong

I installed these brackets on top of my RV, and they are up and not going anywhere. Really happy!!

24.10.2024

C**E

Eased my Airstream Install!

I used these to install two 200 W solar panels on the roof of my Airstream trailer. I used standard mounting brackets near the center of the panels, and these tall brackets at the ends (since the roof is curved).Materials are excellent and brackets are great quality!

27.07.2022

A**R

Like it. Expensive

26.05.2021

C**D

Unusual solution

Most solar panel mounting hardware clamps the frame down to the channel. We wanted to bolt the panels for a boat installation for more positive attachment because of the movement and wind. This hardware is perfect for that and for corrosion protection.

31.07.2022

C**T

Quality solar panel mounts

These are high quality aluminum solar panel mounting brackets. They come in a nice cardboard box, not all jumbled together in a baggie. The brackets have a rubber layer on the bottom as do the long lag bolts. This helps keep water out once they're screwed down. They worked perfectly to mount my Richsolar panel to a shingle roof. Would buy again.

21.07.2019

D**G

Excellent

perfect for mounting panels on a metal roof

2.03.2020

A**R

Heavy Duty!

Haven't installed the panel yet, but these are heavy duty brackets! Thanks!

29.01.2019

M**L

Excellent as always, Michael

1.09.2019

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TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The delivery time was excellent, and the packaging was secure.

2 months ago

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