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Callsun

Custom Solar Panels & PV Modules

CALLSUN offers custom PV modules for RVs, vehicle rooftops, balconies, off-grid equipment and other installations with specific space or integration requirements. Explore our existing models or discuss a custom size solar panel based on your available space, target output, structure and connection requirements.

Custom specifications are subject to feasibility review.

Custom solar panels for RVs, balconies and off-grid equipment
CS180W
180W 25.6% CELL EFFICIENCY

Anti-shading TwinCell design keeps output stable under partial shade from trees, roof racks and uneven sunlight — a good fit for RV rooftops, vans and vehicle-mounted installations.

DIMENSIONS
1180 × 770 × 35 mm
WEIGHT
9.5 kg
OPERATING POINT
Vmp 22.35 V · Imp 8.05 A
OPEN / SHORT CIRCUIT
Voc 25.82 V · Isc 8.86 A
DESIGN
Compact Footprint · Anti Shade Design · Bifacial Energy Gain
CS200W
200W 25.6% CELL EFFICIENCY

Ultra-compact 200W with higher watt density per square metre for balcony PV, small off-grid gear and space-constrained rooftop setups where every watt per square metre counts.

DIMENSIONS
1304 × 770 × 35 mm
WEIGHT
10.5 kg
OPERATING POINT
Vmp 24.83 V · Imp 8.05 A
OPEN / SHORT CIRCUIT
Voc 28.68 V · Isc 8.86 A
DESIGN
High Temperature Performance · Bifacial Energy Gain · Long Term Power Output
CS210W
210W 25.6% CELL EFFICIENCY

Dual-module parallel circuitry with 1/4-cut cells tuned for 24V systems — purpose-built for RV, marine, off-grid cabins and solar generator applications where partial shade is common and reliable 24V output is critical.

DIMENSIONS
1376 × 766 × 35 mm
WEIGHT
11.3 kg
OPERATING POINT
Vmp 34.2 V · Imp 6.1 A
OPEN / SHORT CIRCUIT
Voc 40.3 V · Isc 6.5 A
DESIGN
High Voltage Output · 12V and 24V Compatibility · Anti Shade Design
CS215W
215W 25.6% CELL EFFICIENCY

4-zone anti-shading design tuned for 12 V systems and off-grid equipment where partial shade would otherwise hit output hard — well suited to vehicle and marine PV.

DIMENSIONS
1422 × 766 × 35 mm
WEIGHT
11.5 kg
OPERATING POINT
Vmp 17.30 V · Imp 12.43 A
OPEN / SHORT CIRCUIT
Voc 20.09 V · Isc 12.98 A
DESIGN
4 Module Anti Shade Design · 12V System Compatibility · Bifacial Energy Gain

Discuss Your Module Requirements

Custom module development starts with the requirements of the installation. The following details help CALLSUN assess a suitable approach.

Available Space & Dimensions

Share the usable installation area and preferred module dimensions, including any layout or clearance constraints.

Target Output & Electrical Requirements

Provide the target power and any voltage or current requirements. If the module will connect to an existing system, include the relevant equipment specifications.

Structure & Installation

Describe the intended application, mounting arrangement and any structural or installation constraints.

Connections & Interfaces

Share the required cable arrangement, connector details and equipment interfaces, where known.

Available options depend on the combined dimensional, electrical and structural requirements of the project.

From Requirement Review to Production

Based on the project requirements, CALLSUN can support solution assessment, sample trials and production validation. The scope and next steps are confirmed after reviewing the proposed specifications.

01

Requirement Review

Review the available space, target output, structure and connection requirements.

02

Sample Trials

Where appropriate, use sample trials to assess the proposed module configuration.

03

Production Validation

Review the agreed specifications and relevant validation requirements before proceeding with volume production.

Applications with Specific Fit Requirements

Custom modules may be considered where available space, equipment interfaces or installation conditions make standard module formats less suitable.

RVs & Vehicle Rooftops

For layouts where usable roof space and existing rooftop equipment affect module selection.

Balconies & Walls

For installations with specific dimensional, mounting and connection requirements.

Off-Grid Equipment

For equipment applications that require the module to fit a defined space and electrical configuration.

Other Space-Constrained Installations

For projects where module dimensions and integration requirements need to be considered together.

Manufacturing & Quality Control

CALLSUN combines semi-automated production with manual operations for custom glass modules, with production arrangements based on module dimensions and structural requirements.

Relevant documentation and validation requirements should be confirmed for the selected module or proposed configuration.

  • EL Inspection
  • I-V Testing
  • Visual Checks
  • Electrical Safety Checks

Custom Solar Panel FAQs

PRODUCT INQUIRY

Discuss Your Custom Module Requirements

Tell us about your application, available space and target output. Include any electrical, structural or connection requirements so we can review your request.

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Request Product Information

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