Solar
Solar Panels
Solar Charge Controllers
Mounting
Solar Accessories
Solar Kits
Batteries
Batteries
Battery Management
Battery Boxes
Battery Kits
Chargers
Mains Chargers
DC-DC Chargers
Alternators & Regulators
Charger Kits
Inverters
Inverters
Inverter Kits
Electrical
Circuit Protection
Connectors, Busbars & Terminals
Switch Panels & Accessories
240V Equipment
EV Chargers
Cables
Cables
Pre-made Leads
Cable Management
Converters
DC-DC Converters
Transformers
Monitoring
Monitoring
Monitoring Kits
Kits
Pre-Wired Boards
4x4/Canopy Power Systems
Solar Kits
Inverter Kits
Charger Kits
Battery Kits
Monitoring Kits
By Application
Caravan, Camper & RV
Camping & Portable
Marine/ Boat
4x4/4WD & Off-Road
Off-Grid Homes & Sheds
Golf Carts
Portable 12V Car Chargers
Portable 24V Bus/Truck Chargers
By Brand
Pre-Wired Boards
4x4/Canopy Power Systems
Solar Kits
Inverter Kits
Charger Kits
Battery Kits
Monitoring Kits
Glass-free construction
eArc modules use crystalline-silicon cells with composite front materials instead of conventional module glass.
Sunman eArc · glass-free solar
Sunman Energy
Sunman eArc lightweight solar panels
Compare glass-free, lightweight crystalline-silicon panels for caravans, motorhomes, boats, vehicles and other installations where conventional framed glass modules may not suit the available surface or weight.
Lightweight, glass-free Sunman eArc flexible solar panels for caravans, boats and curved roofs.
8
current Sunman products
Glass-free eArc construction using lightweight composite materials
Local technical help with sizing, mounting and controller matching
Why eArc is different
Solar for weight- and shape-sensitive surfaces
Sunman replaces conventional module glass with proprietary lightweight composite materials. Exact weight, thickness, flexibility, electrical ratings and mounting limits vary by model.
Low weight and profile
Compare exact dimensions and mass where roof loading, panel height or handling are important to the installation.
Model-specific mounting
Surface support, permitted bend, adhesive method, cable exit and thermal requirements must follow the selected panel instructions.
Complete current range
Shop all Sunman eArc panels
Use the catalogue filters for wattage, dimensions, availability and other verified attributes. Confirm the exact datasheet, mounting instructions, controller compatibility and application warranty before installation.
Sunman 175W eArc Flexible Solar Panel | Junction Box Underneath
Regular price$359.00
Availability: In Stock
Customer stories
Five-star support, from planning to after-sales
Before final selection
Size, mount and connect the exact eArc model
Available area and nameplate watts are only the start. Check panel construction, electrical data, surface support, cable exit, mounting method and controller limits together.
Estimate daily solar needs
Start with loads, seasonal conditions and battery voltage before choosing the available panel area and wattage.
Open the solar sizing toolReview lightweight panel mounting
Check surface preparation, support, adhesive method, cable routing and heat-management considerations before installation.
Read the mounting guideCheck current Sunman technical data
Use the exact product datasheet and installation instructions for electrical, mechanical and warranty requirements.
Visit Sunman EnergySystem check
Want the panel and controller checked together?
Send the details below and our off-grid team can help narrow the suitable Sunman model and surrounding solar components.
- Available mounting length, width, curvature, surface and weight limit
- Daily energy target, season, location and expected shade
- Battery voltage, chemistry, capacity and charge-current limit
- Proposed panel quantity, array wiring, controller and cable length
Ask an expert to check it
Final mounting and wiring must follow the exact product instructions and applicable installation requirements.
Selected solar panel guides
Plan the array around the surface and system
Six practical guides covering sizing, construction, specifications, cell technology, panel angle and array wiring.
Camping Solar Panel Sizing Guide 2026
If you are choosing a portable solar panel for camping, the easiest way to get it right is to size it from your daily...
Read guide
How to Choose the Best Solar Panels for Your Caravan
Discover how to choose the best solar panels for your caravan. Learn about high-efficiency, durable, cost-effective, easy to install, and flexible solar panels from...
Read guide
How to Read Solar Panel Specifications: Decoding STC, Voc and More
Navigate the complex world of solar panel specifications with our comprehensive guide. Learn about STC, NOCT, and more to choose the right solar panel...
Read guide
Types of Solar Cells for Caravans and RVs
Looking for the perfect solar panel for your caravan? Our guide covers the different types of solar panels available, including monocrystalline, polycrystalline, thin-film /...
Read guide
Flat vs Tilted Solar Panels on a Caravan: Does Tilting Really Improve Efficiency?
Many travellers setting up solar on a caravan, RV, 4WD, or motorhome ask whether tilting roof panels is worth the effort. The idea is...
Read guide
Solar Panel Wiring Guide
SOLAR 4 RVS OFF-GRID, EXTRA LOW VOLTAGE SOLAR PANEL WIRING GUIDE Please read this document in full before commencing installation. To maximise the...
Read guideAbout this range
Sunman eArc Flexible Solar Panels: Lightweight Power Without the Glass
Sunman eArc solar panels replace heavy tempered glass with glass fibre-reinforced composite polymers, similar in concept to the materials used in aircraft windows. The result is a thin, light panel that suits roofs and vehicles where a rigid glass panel is too heavy or will not conform to the surface. The range runs from a compact 9V 85W module up to the 430W eArc flexible solar panel. That spread lets you size a system for a small van roof, a large motorhome or a lightweight building installation.
As featured in ABC News: Sunman is part-owned by the Clean Energy Finance Corporation
Why Choose eArc Lightweight Solar Panels
Development of the eArc composite structure was supported by $3.3M in funding from the Australian Renewable Energy Agency (ARENA). The aim was durability comparable to conventional framed panels at a fraction of the weight. Key specifications include:
- Lightweight: the 175W frameless panel weighs approximately 3kg
- Thin profile: around 2mm thick in frameless form for a low, aerodynamic installation
- Hail tested: tested with 35mm, 200g ice stones at 39.5m per second
- Load rated: 2400Pa wind and 2400Pa load ratings
- Efficient cells: monocrystalline cells
- Warranty: 10-year product warranty for building use and 5 years for mobile applications
- Accreditation: Clean Energy Council (CEC) accreditation on the SMA and SMD Series
Choosing the Right Sunman Panel
Start by matching wattage to your available roof space and daily energy use. The 430W, 320W and 230W eArc flexible solar panels suit larger motorhomes, buses and building roofs. The 175W and 200W Black Square models, both with the junction box underneath, keep cabling tidy and protected on caravan and boat roofs. The 100W Narrow panel fits slim gaps between hatches and roof racks, and is also offered as a kit with a Victron 20A BlueSolar PWM charge controller for a simple starter setup. The 9V 85W panel suits layouts that call for a lower-voltage module.
Proven projects include the world's first solar-powered train in Byron Bay. Another is the Sydney Maritime Museum heritage building, where 812 panels (235kW) were installed on a roof that could not carry glass-framed solar panels.
Compatibility Notes
eArc panels are available frameless for curved surfaces or with a 5.6mm black anodised aluminium frame. The framed version offers some flex and helps create an air gap for cooling, but it is not bendable. Choose the junction box underneath versions when you want cable entry through the roof. Before fitting, confirm your charge controller's voltage and current limits match the panel and your 12V or 24V battery bank. For adhesive selection, surface preparation and cable routing, follow our flexible and lightweight solar panel mounting guide.
Upgrade to tough, lightweight solar that protects your payload and roof structure. Compare the Sunman eArc sizes below and order the panel that fits your build today.
Technical buying questions
Sunman eArc solar panel questions
These are selection principles. The current datasheet, installation manual, warranty and controller instructions for the exact products remain the authority.
What makes a Sunman eArc panel glass-free?
Sunman uses crystalline-silicon solar cells with proprietary lightweight composite materials in place of the conventional front glass used by many rigid modules. Construction, surface layers, weight, thickness and ratings still vary by exact eArc model, so use its current datasheet.
Can every Sunman eArc panel be installed on a curved surface?
No. A lightweight or flexible description does not permit unlimited bending. Check the exact panel minimum bend radius, permitted bending direction, support requirements and installation method. Do not crease, twist or force a panel to match a surface outside its instructions.
Can a Sunman panel be bonded directly to a caravan, boat or vehicle roof?
Only with a mounting method approved for the exact panel and surface. Confirm structural support, surface preparation, adhesive or mechanical attachment, thermal movement, drainage, cable routing, junction-box clearance and future removal. Follow both the panel and adhesive-system instructions.
Does every Sunman panel suit a 12V battery system?
No. Panel voltage is not the same as battery voltage. Use Voc, Vmp, Isc and Imp for the exact panel and proposed series or parallel array. Some compact Sunman models have atypical operating voltages and may require a particular controller or array arrangement.
Should I choose a top or underside junction box?
The junction-box position changes the required cable route, mounting clearance, roof penetration and access. An underside box needs a suitable recess or clearance without loading the box or cable, while a top box remains visible and must be positioned and protected according to the panel instructions.
Can Sunman eArc panels be walked on?
Do not assume a lightweight panel is walkable. Concentrated foot pressure, sharp objects and unsupported areas can damage cells or laminates. Keep panels out of traffic paths unless the exact product and completed supported installation explicitly allow the expected load.
How do I choose a solar controller for Sunman panels?
Calculate the complete array Voc, Vmp, Isc, Imp and power, including cold-temperature voltage and the chosen series or parallel layout. Keep those values within the controller limits and match its battery output, charge current and profile to the battery. Check every relevant datasheet and manual.