2026 Sunman Flexible Solar Panel 520W 550W Half Cell Wholesale Poly PV Flexible Solar Panel Monocrystalline Photovoltaic Module Solar Energy High Efficiency

Product Description

Product Description

 

The 2026 Sunman Flexible Solar Panel 520W is a lightweight, ultra-thin half-cell monocrystalline PV module designed for RVs, boats, and off-grid applications.
Utilizing advanced half-cell technology, it delivers high conversion efficiency of up to 22% while maintaining excellent flexibility and durability. The module can be installed on curved or uneven surfaces without compromising performance.
As a direct manufacturer, we provide bulk supply, custom specifications, and global shipping, making us your reliable solar partner.

Key Features

• High Power Output

  • Rated at 520W with half-cell design to reduce resistance loss and boost efficiency

  • High energy yield under diverse weather conditions

• Lightweight & Ultra-Thin

  • Weighs only 5-6kg, thickness under 5mm

  • Perfect for RV roofs, boats, and portable off-grid systems

  • Easy and flexible installation

• Flexible & Durable Materials

  • Waterproof, dustproof, and corrosion-resistant for long-term outdoor use

  • ETFE/backsheet material ensures reliable performance in harsh environments

• Wide Applications

  • Ideal for RVs, boats, solar off-grid systems, and emergency power backup

  • Provides green energy with minimal dependence on the grid

• Easy Installation & Compatibility

  • Bendable up to 30° without mounting brackets

  • Compatible with MPPT controllers and inverters for efficient system integration

 

Product Parameters

STC	SMF520J-12X12UW
Maximum Power ( Pmax )	520
Maximum Power Voltage ( Vmp )	42.3
Maximum Power Current ( Imp )	12.31
Open-circuit Voltage ( Voc )	49.5
Short-circuit Current ( Isc )	13.56
Module Efficiency (%)	19.3
Operating Temperature	-40ºC to 85ºC
Maximum System Voltage	1500V DC(IEC)
Maximum Series Fuse Rating	25A
Application Class	Class A
Power Tolerance	0/+5 W
Weight	8.6KG
Size	2246*1197*2mm
STC: Irradiance 1000W/m2,Cell temperature 25ºC,AM=1.5	Tolerances of Pmax,Voc and Isc are within ±5%

Detailed Photos

Project Case

Company Profile

Certifications

 

Packaging & Shipping

FAQ

Q1: Can this solar panel be installed on curved or uneven RV roofs?
A: Yes, the Sunman 520W flexible solar panel can bend up to 30° without affecting performance. Its lightweight and ultra-thin design allows seamless installation on curved, angled, or uneven surfaces, making it ideal for RVs, camper vans, and boat roofs.

Q2: Is this panel suitable for off-grid solar systems?
A: Absolutely. This panel is fully compatible with standard MPPT controllers and inverters, enabling efficient off-grid energy systems. It is perfect for remote cabins, boats, RVs, and emergency backup setups where grid access is limited or unavailable.

Q3: What is the lifespan and durability of the panel?
A: The Sunman 520W flexible solar panel is designed for a lifespan of 25 years or more. It features ETFE/backsheet protection, is waterproof, dustproof, and corrosion-resistant, ensuring reliable energy production even in harsh outdoor environments.

Q4: How much power can I expect under real conditions?
A: While the panel is rated at 520W under standard test conditions (STC), real-world output depends on sunlight, temperature, and installation angle. With optimal conditions, the panel delivers high efficiency with minimal power loss due to its half-cell design.

Q5: Can I order custom sizes or configurations for my project?
A: Yes, we provide flexible customization options. You can request specific voltages, sizes, or panel quantities to suit your RV, boat, or off-grid solar system. Bulk orders and OEM/ODM services are available for larger projects.

Q6: How easy is installation and maintenance?
A: Installation is simple-no heavy frames or mounting brackets are required for most curved or flat surfaces. Maintenance is minimal: just clean the panel surface periodically to remove dust or debris for optimal performance.

Q7: Is this solar panel certified for international markets?
A: Yes, our 520W flexible solar panel meets CE, TUV, and ISO 9001 international standards. It is tested for electrical safety, performance, and weather resistance, ensuring compliance and reliable operation worldwide.

Q8: Can this panel be used in marine or outdoor environments?
A: Definitely. The panel is corrosion-resistant and waterproof, making it suitable for marine applications, RVs, rooftops, and other harsh outdoor environments. Its flexible design also adapts well to curved or irregular surfaces.