1. Electrical Characteristics at STC

Parameter10W20W30W40W50W60W
Nominal Power (Pmax)10W20W30W40W50W60W
Open circuit Voltage (Voc)21.76V23.12V24.48V23.12V21.76V21.76V
Short circuit Current (Isc)0.58A1.09A1.54A2.17A2.88A3.46A
Voltage at Nominal Power (Vmp)18.24V19.38V20.52V19.38V18.24V18.24V
Current at Nominal Power (Imp)0.55A1.04A1.47A2.07A2.75A3.29A
Module Efficiency (%)20%20%20%20%20%20%
Operating Temperature-40°C to +85°C-40°C to +85°C-40°C to +85°C-40°C to +85°C-40°C to +85°C-40°C to +85°C
Maximum System Voltage1000VDC (IEC) / 600VDC (UL)1000VDC (IEC) / 600VDC (UL)1000VDC (IEC) / 600VDC (UL)1000VDC (IEC) / 600VDC (UL)1000VDC (IEC) / 600VDC (UL)1000VDC (IEC) / 600VDC (UL)
Fire Resistance RatingType 1 (in accordance with 1703) / Class C (IEC61730)Type 1 (in accordance with 1703) / Class C (IEC61730)Type 1 (in accordance with 1703) / Class C (IEC61730)Type 1 (in accordance with 1703) / Class C (IEC61730)Type 1 (in accordance with 1703) / Class C (IEC61730)Type 1 (in accordance with 1703) / Class C (IEC61730)
Maximum Series Fuse Rating15A15A15A15A15A15A

Note: STC: Irradiance 1000W/m², Cell temperature 25°C, AM1.5, Power Tolerance 0 ± 3%


2. Size and Packing

ModelCells SizeNumber of CellsDimensionWeight
OSA1052.5x30mm32 (16×2)290x240x170.8kg
OSA20105×26.2mm34 (17×2)510x240x171.3kg
OSA30182×22.7mm36 (18×2)470x400x171.8kg
OSA40210×26.2mm34 (17×2)515x450x252.6kg
OSA50210x35mm32 (16×2)630x450x253.2kg
OSA60210x42mm32 (16×2)740x460x254.1kg

3. Mechanical Characteristics

ComponentSpecification
Front cover3.2mm, Anti-Reflection Coating, Tempered Glass
FrameAnodized Aluminum Alloy
Junction BoxIP 67 Rated
CableTUV 1×4.0mm²
ConnectorPV Connector (compatible)

Mono PV Module

HIGH EFFICIENTY SERIES

A monocrystalline solar panel is an assembly composed of several monocrystalline silicon solar cells assembled on a panel in a certain manner.

PORTABLE SOLAR PANELS

HI-POWER SERIES

Hi-Power series, lighter, more suitable for portable power station

FLEXIBLE SOLAR PANELS

TF SERIES

Developed with patented material technology, high-efficiency cell design

Rigid Solar Panel

SGM SERIES

The SGM series can charge 12V batteries such as boats, RVs, or any other system with 12V batteries or battery packs.

Why Get Solar Panels from us- Chinese solar panel manufacturers and suppliers

High-Efficiency Technology

Advanced solar cells maximize energy output, ensuring superior performance even in low-light conditions

Durable & Sustainable Design

Robust materials and rigorous testing guarantee 25+ years of reliability, backed by industry-leading warranties

End-to-End Custom Solutions

Tailored systems for residential/commercial needs, paired with seamless installation support and financing options

Competitive Pricing & Trusted Service

Cost-effective pricing with rapid ROI, supported by 24/7 customer care and global technical expertise

1. Benefit From Your Committed Solar Panel Factory

Your brand, your rules: Customize designs, branding, and specs effortlessly. We handle engineering, certifications, and logistics, ensuring your products stand out while cutting R&D costs and time-to-market.

No more inventory headaches: Our scalable factory adapts to your order size, delivering bulk shipments or custom designs 20% faster than industry averages.

IWISSolar offers you a discount sample for testing and to confirm that we met your custom design requirements. For existing samples, it takes about 7 days to reach. If you want your own designs, it takes 10-15 days, subject to your designs whether they need a new printing screen, etc. 

2. Custom Your Bulk Solar Panel

Identifying Your Solar panel Idea

  • Share your needs: efficiency, size, or aesthetics.

  • Get free expert consultation to refine specs (e.g., wattage, frame color) for your project or market.

Custom Design & Printed Logo

  • Add your brand identity: choose panel colors, patterns, or print your logo directly.

  • We handle technical details (certifications, durability testing) and offer 3D prototypes for approval before mass production.

Choose Types/Functions

Flexible/lightweight panels (for RVs or curved surfaces).

    • Smart panels (with built-in monitoring).

  • Mix types to match diverse applications (residential, commercial, industrial).

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