135 Watt Walkable Semi Rigid Solar Panel with Polycarbonate & J-Mount Brackets - New Generation Back Contact Cell A+ Grade 27.4% Efficient Cells

Generate more solar power while keeping valuable deck and roof space usable.

Add reliable solar capacity to your boat, van, RV, or other space-constrained installation with the CMPower 135 Watt Walkable Semi-Rigid Solar Panel. Featuring advanced 27.4% efficient All-Back Contact (ABC) solar cells, this panel delivers high power output in a compact, walkable design built for demanding marine and mobile applications.

With a compact 21.3 × 42.3 inch (540 × 1075 mm) footprint, the CMPower 135W panel helps maximize solar generation where available surface area is limited. Delivering 135 watts of rated power, this panel is ideal for boat decks, yachts, sailboats, RV roofs, van conversions, and other installations where solar performance and usable surface space must work together.

Key Features

• 135W maximum solar output
• 27.4% high-efficiency Back Contact solar cells
• New-generation All-Back Contact (ABC) solar technology
• Walkable semi-rigid solar panel construction
• Compact 21.3 × 42.3 inch footprint
• Slim 5 mm panel thickness
• Enhanced partial shade performance
• Excellent high-temperature performance
• -0.26%/°C Pmax temperature coefficient
• Clean all-black, grid-free appearance
• Transparent twin-wall polycarbonate backing included
• J-channel mounting brackets included
• Designed for boats, RVs, vans, and space-constrained installations

What's Included

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

27.4% High-Efficiency All-Back Contact Solar Cells

The CMPower 135W uses new-generation All-Back Contact (ABC) solar cell technology with 27.4% cell efficiency. Unlike traditional solar cells with electrical contacts on the front surface, ABC technology places the positive and negative electrical contacts on the rear side of the cell.

This design maximizes the front surface area available for sunlight absorption, helping produce higher power output from a compact panel footprint while maintaining a clean, premium all-black appearance.

Benefits include:

• 27.4% high-efficiency solar cells
• Increased usable sunlight absorption area
• Sleek, grid-free black appearance
• Higher power output from limited installation space

Walkable Semi-Rigid Construction

Designed for installations where solar panels must coexist with usable deck or roof space, the CMPower 135W combines a semi-rigid walkable construction with a supportive polycarbonate backing system.

The included twin-wall polycarbonate backing helps provide structural support while creating airflow beneath the panel to reduce heat buildup and protect the mounting surface. The J-channel mounting system provides a clean and secure installation solution while maintaining the panel’s low-profile design.

• Walkable semi-rigid design
• Supportive twin-wall polycarbonate backing
• J-channel mounting system included
• Slim 5 mm thickness
• Maximum bend specification of 10°

Enhanced Performance Under Partial Shade

Marine and mobile solar installations often experience changing sunlight conditions caused by:

• Boat masts and rigging
• Radar equipment
• Antennas
• Roof vents
• Air conditioners
• Roof racks

The CMPower 135W features an advanced cell and electrical design that improves performance under partial shading conditions, helping the panel continue producing useful solar power when complete sunlight exposure is not available.

Excellent High-Temperature Performance

Solar panels installed on boat decks, RV roofs, and vehicle surfaces can experience high operating temperatures. The CMPower 135W is designed with an excellent temperature coefficient to help reduce output losses during hot conditions.

The panel features a: Pmax Temperature Coefficient: -0.26%/°C
This means the panel experiences reduced power loss as temperatures increase compared with panels with higher temperature sensitivity.

Clean All-Black Design

The CMPower 135W features a seamless all-black appearance without traditional visible front-side electrical grid lines.

Designed for Marine & RV Applications

The combination of 135W output, walkable semi-rigid construction, compact dimensions, and included mounting components makes this panel ideal for installations where traditional framed solar panels are too bulky or consume valuable usable space.

Recommended applications:

• Boat decks and marine surfaces
• Yachts and sailboats
• RV roofs
• Camper vans
• Van conversions
• Roof racks
• Space-limited solar arrays
• Walkable solar installations

The manufacturer specifically identifies this series as suitable for boat decks, RV and van roofs, and applications where durable walkable solar helps maximize usable space.

Specifications