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120 Watt Walkable Semi-Rigid Marine Solar Panel with Polycarbonate & J-Mount Brackets – SunPower A+ Grade, 24.4% Efficiency

120W Walkable Semi-Rigid Solar Panel supplied with polycarbonate backing and J-brackets. It's engineered with SunPower A+ Grade Maxeon cells delivering an impressive 24.4% efficiency. Built for performance in both full and partial sun, this panel is shade tolerant, making it perfect for marine and van applications.

Designed to withstand the harsh marine environment, the semi-rigid construction makes it durable yet lightweight, allows it to be safely walked on when properly supported.

This model dissipates heat efficiently, maintaining high output even in hot climates. Its slim profile and rugged build allow for secure mounting on a boat deck, catamaran roof, or van conversion, giving you dependable off-grid power wherever you travel. Poly and J brackets are included.

Perfect for powering: fridges, lights, electronics, navigation gear, laptops, and more while cruising or camping off-grid.

✅ The semi-rigid (walk-on) solar panel kit includes:

• PV solar panel module
• Sheet of twin wall polycarbonate backing
• Two J channel mounting extrusions
• Owner’s Manual

📦 Ships in 1-2 business days with UPS Ground from Denver or Michigan

⚙️ Key Features

• High Efficiency Performance – Built with premium SunPower A+ Grade cells delivering up to 24.4% efficiency for maximum power output.

• Walkable & Durable – Semi-rigid design allows safe walking on the panel (see the module loading considerations below).

• Shade Tolerant – Maintains reliable power generation even in partial shading from sails, rigging, or marine gear.

• Heat Dissipation Advantage – Runs cooler than standard panels, ensuring better performance in hot climates.

• Marine-Ready Construction – Built to withstand the harsh saltwater environment with corrosion-resistant materials.

• Lightweight & Compact – Thinner 4mm fiberglass backing for easy installation on rigid boat decks or vans rooftops.

• Versatile Mounting Options – Ideal for marine, van, camper, and off-grid installations where flexibility and strength are required. Includes Poly and J brackets for secure setup.

• Quiet, Clean Energy – No moving parts, zero emissions — just efficient off-grid power.

• 5-Year Warranty – Backed by Custom Marine Products’ quality guarantee.

📏 Specifications

ℹ️ Module Loading Considerations

• Semi-rigid and flexible panels can be walked on with anti-slip or flat soft sole shoes.
• Semi-rigid panels and flexible panels can support a concentrated weight (minimum area of 2” x 2”) of up to 180 pounds, with a rigid backing supporting the panel. Avoid sharp objects, chair legs, or high heels on panels — these can crack solar cells. Semi-rigid or flexible panels can support a distributed weight in excess of 180 pounds if the panel has a strong rigid backing.
• Placing heavy objects (such as installation tools) on the surface of the panel during or after installation of the panel is acceptable. Remove all obstructions once panels are installed.
• Do not walk on panels that are installed on uneven surfaces.
• Do not apply excessive loads on the corners of the panel.

🎥 Unboxing Our Walkable Solar Panel

See what comes with our Walkable Solar Panel, including J brackets and polycarbonate backing for a complete, ready-to-use solar setup. Also, learn how CMP’s shade-tolerant design keeps power flowing even when parts of the panel are shaded. This advanced technology ensures reliable solar performance for boats, vans, and off-grid systems.