PA621 lightweight
solar panels
- Built to Move,Made for power
- Designed for shade and motion，made to move
SUNGOLD
FLEXIBLE SOLAR
Global Expert In Solar Manufacturing
1000+ B2B Clients —Trusted By Industry Leaders
Sungold Is A Global Leader In Solar Manufacturing, Trusted By Over 1000 B2B Clients. Our Innovative Solar Solutions Have Earned The Confidence Of Industry Leaders Worldwide.
Why PA621? Designed to Solve Installer Problems.
Our off-grid solar systems are not only reliable and efficient, but they can also be changed to fit your specific needs.
Strong Structural Strength ≥20 MPa
Lightweight Build 4.4 kg/m²
Vibration Resistance 10–60Hz
Caravan sides can be designed
PA621 Lightweight Solar Panels — Full Series
7-model comparison with complete electrical, thermal, mechanical, and physical specifications
| Specification | SG-PA621-100W | SG-PA621-120W | SG-PA621-130W | SG-PA621-145W | SG-PA621-170W | SG-PA621-180W | SG-PA621-200W |
|---|---|---|---|---|---|---|---|
| Wattage | 100W | 120W | 130W | 145W | 170W | 180W | 200W |
| Electrical | |||||||
| Max Power (Pmax) | 100W | 120W | 130W | 145W | 170W | 180W | 200W |
| Open Circuit Voltage (Voc) | 28.5V | 22.3V | 24.5V | 27.1V | 24.5V | 48.9V | 36.6V |
| Operating Voltage (Vmp) | 24.4V | 19.1V | 20.9V | 23.2V | 20.9V | 41.8V | 31.3V |
| Short Circuit Current (Isc) | 4.30A | 6.60A | 6.53A | 6.56A | 8.54A | 4.52A | 6.71A |
| Operating Current (Imp) | 4.10A | 6.29A | 6.23A | 6.26A | 8.14A | 4.31A | 6.39A |
| Max System Voltage | 1000V DC | ||||||
| Cell Performance | |||||||
| Cell Type | Monocrystalline | ||||||
| Cell Efficiency | >22.70% | ||||||
| Specification | SG-PA621-100W | SG-PA621-120W | SG-PA621-130W | SG-PA621-145W | SG-PA621-170W | SG-PA621-180W | SG-PA621-200W |
|---|---|---|---|---|---|---|---|
| Wattage | 100W | 120W | 130W | 145W | 170W | 180W | 200W |
| Thermal | |||||||
| Thermal Conductivity | 0.2 W/(m·K) | ||||||
| Operating Temperature | −40°C to +85°C | ||||||
| Mechanical | |||||||
| Vibration Resistance | 10–60 Hz | ||||||
| Bending Strength | ≥20 MPa | ||||||
| Specification | SG-PA621-100W | SG-PA621-120W | SG-PA621-130W | SG-PA621-145W | SG-PA621-170W | SG-PA621-180W | SG-PA621-200W |
|---|---|---|---|---|---|---|---|
| Wattage | 100W | 120W | 130W | 145W | 170W | 180W | 200W |
| Physical | |||||||
| Front Material | HPC | ||||||
| Color | Black | ||||||
| Weight | 3.72KG | 4.12KG | 4.37KG | 4.75KG | 5.42KG | 4.41KG | 4.93KG |
| Product Size | 1065*622*12mm | 1210*622*12mm | 1305*622*12mm | 1115*807*12mm | 1315*807*12mm | 1170*865*10mm | 1170*930*10mm |
| Remarks | SUNGOLD offer customize service,please refer to our website or ask SUNGOLD workers for more sizes. | ||||||
Best Lightweight Solar Panel PA621
With A Conversion Efficiency Of 22.7%, These Lightweight Solar Panels Deliver Exceptional Performance, Thanks To The Use Of High-Efficiency Monocrystalline Solar Cells And High-Strength Composite Backsheets. The Low-Temperature Coefficient Of The Cells And Superior Insulation Minimize The Impact Of Elevated Temperatures On Power Output, Ensuring Excellent Energy Yield.
Certifications & Reliability Testing
Built to meet international compliance standards and validated through durability-focused testing.
Certified for Safety, Reliability, and Long-Term Use
PA621 is designed for professional solar applications where certification, environmental durability, and product safety all matter. The following standards and tests support its use in demanding installation scenarios.
Download CertificatesIEC 61215
Design Qualification
IEC 61730
Safety Qualification
CE Marking
European Compliance
Environmental
Durability Testing
Leading manufacturer of Lightweight Solar Panels
sungold solar power flexible panels PA621 offer a number of advantages for commercial buildings and homes that need to be grid-tied. These include:
Protect Performance from Roof Heat
A hot vehicle roof constantly threatens sungold solar panel efficiency. Our solution is a proprietary backsheet with exceptionally low thermal conductivity (0.2 W/m·K). This advanced layer acts as a powerful thermal barrier, slowing heat transfer from the surface to protect the solar cells and ensure more stable, reliable power generation.
Shock-resistant design
onstant road vibration can cause micro-cracks and connection failures in ordinary solar panels. Our shock-resistant design is engineered to withstand continuous 10–60Hz vibrations, delivering consistent, reliable power that your customers can trust, mile after mile. Build your mobile solutions with confidence.
Armored for Real-World Hazards
Flying stones on the highway or accidental drops on a balcony can shatter panel performance. Our robust, fiberglass-reinforced backsheet provides superior impact resistance (Bending Strength ≥ 20MPa), acting as a shield to prevent micro-cracks in the solar cells. This ensures long-term durability and peace of mind for you and your customers.
Custom-Fit Aesthetics Framed for RV Perfection
The Sungold solar panels lightweight PA621 features a sleek, custom-designed RV frame that blends seamlessly with vehicle curves for a clean, professional look. Built for beauty and strength, it not only enhances the panel’s structural integrity but also simplifies installation. Available in customizable sizes and finishes to perfectly match different RV models.
Built To Resist. Ready For Impact
Whether Facing Road Vibrations In RVs Or Accidental Bumps On Urban Balconies, PA621’S Reinforced Structure Delivers Exceptional Durability. With A Bending Strength Of ≥20MPa And Vibration Resistance From 10–60Hz, It Resists Shocks, Hail, And Pressure — Protecting Performance, Even In Motion Or Exposure.
Slow Heat Transfer
On RVs And Trucks, Rooftops Absorb Intense Sunlight, Causing Standard Solar Panels To Quickly Overheat And Impact Power Output. Its Patented Backplate Design, Featuring A Low Thermal Conductivity Of 0.2W/(M·K), Is Engineered To Significantly Impede The Rate Of Heat Transfer To The Solar Cells. By Cleverly Regulating Heat Absorption, The PA621 Helps To Maintain The Solar Cells' Optimal Operating Temperature, Which Is Crucial For Sustained Performance. This Ensures Your Solar Array Delivers Stable, Uninterrupted Performance, Even When Facing Extreme Outdoor Temperatures.
Intelligent Power, Even in the Shadows
Don't let a single tree branch or building shadow shut down your entire system. Our optional anti-shading technology intelligently bypasses shaded cells, preventing drastic power drops and maximizing energy harvest in real-world conditions. It's the key to truly reliable, uninterrupted mobile power.
Sungold PA621 - Easy Installation
Designed for quick and easy installation, our products can be secured to a solar balcony with ties without complicated installation or modification. Installation on a balcony is the smart choice for urban power generation. It can also be installed on roofs as well as RVs.Installation takes only 15 minutes
Tested for Trust: How Sungold PA621 Earns Your Confidence
Our solar panels Have Passed hail, UV, thermal cycling, humidity freeze, leakage, and damp heat testsare designed for effortless installation, whether you’re securing them to a balcony, mounting them on a car roof, or fitting them onto an RV. With no complicated modifications needed, our products are the smart choice for urban power generation and off-grid adventures.Tested for Reliability. Trusted for Integration.
Tailor Your Solar Panel
Built For Your Vehicle
Sungold Provides Comprehensive Customization Services For The PA621 Series:
Custom RV Frame Designs For Seamless Rooftop Integration Optional Shadow Management Technology For Stable Power In Partial Shading Multiple Sizes, Wattages, And Configurations Available For Unique Installation Needs Whether You Need Enhanced Shading Resistance, Special Sizes, Or Project-Specific Adaptations — We’re Ready To Design It With You.
Ideal For Balconies And Garden Systems: Powering Urban Spaces With Ease
The Sungold 621 Series Balcony Solar Panels Are Perfect For Urban Living, Offering A Lightweight, Durable Solution For Balconies And Gardens. Built To Withstand Hail And Strong Winds, They Deliver Reliable Clean Energy In Compact Spaces, Making Sustainable Living Easy And Efficient For City Dwellers.
Balcony Solar Setup → “No Heavy Mounting Needed”
Why We Chose This Material Architecture
A technical explanation of how PA621 addresses rooftop heat transfer and road-induced vibration in mobile solar applications.
Vehicle-mounted panels must resist both sustained rooftop heat and continuous mechanical stress during travel.
In controlled testing, PA621 cells operated 5°C lower than identical cells using a standard PET backsheet.
Fiberglass-reinforced composite backsheet with improved thermal resistance and stronger structural support.
When designing the PA621 series, our primary engineering challenge was solving the thermal-mechanical coupling problem unique to vehicle-mounted solar panels. On an RV rooftop, the panel simultaneously faces two destructive forces: sustained heat transfer from the sun-baked roof surface below, and continuous mechanical stress from road-induced vibration.
Conventional flexible panels use a single-layer polymer backsheet (typically PET or TPT) with thermal conductivity around 0.15–0.25 W/(m·K). While this provides basic weather protection, it offers no meaningful thermal barrier when mounted directly on a metal roof that can reach 70–80°C in summer.
For the PA621, we developed a fiberglass-reinforced composite backsheet with a measured thermal conductivity of 0.2 W/(m·K) — but critically, with a significantly greater thickness and multi-layer structure that creates effective thermal resistance far superior to conventional single-layer designs.
The fiberglass reinforcement serves a dual purpose: it increases bending strength to ≥20 MPa (versus ~8–12 MPa for standard flexible panels), and it distributes vibration stress across a wider area, preventing the stress concentration points that cause micro-cracks in cell interconnects.
Frequently Asked Questions
Key Takeaway: The PA621 achieves a field return rate of <1.8% by utilizing ETFE lamination and a patented fiberglass composite backsheet, effectively eliminating heat-induced delamination.
The PA621 addresses standard industry failures at the material level:
- ETFE Surface: Offers 10–15 years of UV stability, preventing yellowing and cracking common in PET-based panels.
- Patented Fiberglass Backsheet: Creates a thermal barrier, keeping cell temperatures ~5°C lower than standard panels.
- 100% EL Imaging: Every batch includes a full inspection report for micro-crack detection before shipment.
The PA621 cuts after-sales costs by solving the two root causes of early failure: vibration cracking and thermal degradation.
Conventional modules often fail on RVs because of micro-cracking from road vibration in the 10–60 Hz range. The PA621's fiberglass backsheet has bending strength of at least 20 MPa, which distributes stress across the panel instead of concentrating it on cell joints.
Backed by a 10-year product warranty, it helps lower total cost of ownership compared with replacing budget panels every 2 years.
Yes. The PA621 is CE and RoHS certified and compliant with IEC 61215 and IEC 61730.
It is compatible with 600W and 800W microinverters for the German balcony solar market. Its 4.4 kg/m² weight density is suitable for projects with strict roof-load considerations.
Full test reports and Declaration of Conformity documentation are available for customs and market-entry filing.
For standard models, MOQ is 100 pieces with a lead time of 25–30 business days.
For OEM or custom projects, MOQ is 500 pieces per SKU with a lead time of 30–35 days.
Standard model coverage is 100W–170W, while custom specifications are available for OEM projects. New accounts typically start with T/T 30% deposit and 70% against B/L. Net-30 and Net-60 terms may be available for established partners with a track record of 2 or more orders.
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Flexible Customization For RV & Mobile Scenarios
Tailor Your Solar Panel — Built For Your Vehicle.
