✅ Ultra-High Conversion Rate
MONO PERC Cells with 21.7%+ Efficiency – Generate 30% More Energy Than Conventional Panels

✅ All-Weather Resilience
Anti-Reflective Glass & IP68 Waterproof Design – Stable Output in Rain, Snow, or Extreme Heat (-40°C~85°C)

✅ Compact & Easy Installation
Optimized 108-Cell Layout – Saves 15% Rooftop Space While Maximizing Energy Yield

✅ 25-Year Linear Power Warranty
Certified by TÜV & IEC – Backed by 15-Year Material Quality Guarantee

540-550 Chinese Solar Panel Manufacturers

Key Highlights:

  • 21.7% Max Module Efficiency

  • 0~3% Power Tolerance

  • <2% First Year Power Degradation

  • 0.45% Annual Degradation (Years 2-30)

  • Half-Cell Technology for Lower Operating Temperature


Mechanical Parameters

ParameterSpecification
Cell Orientation144 (6×24)
Junction BoxIP68, three diodes
Output Cable4mm², +400mm/-200mm (±1400mm customizable)
GlassDual glass, 2.0-2.0mm heat strengthened
FrameAnodized aluminum alloy
Weight31.8kg
Dimensions2278×1134×30mm
Packaging36pcs/pallet, 180pcs/20ft GP, 720pcs/40ft HC (576pcs for USA)

Electrical Characteristics (STC & NOCT)

Module TypeLRS-72HBD-540MLRS-72HBD-545MLRS-72HBD-550MLRS-72HBD-555MLRS-72HBD-560M
Testing ConditionSTC / NOCTSTC / NOCTSTC / NOCTSTC / NOCTSTC / NOCT
Max Power (Pmax/W)540 / 403.6545 / 407.4550 / 411.1555 / 414.8560 / –
Open Circuit Voltage (Voc/V)49.50 / 46.5449.65 / 46.6849.80 / 48.8249.95 / 46.9750.10 / –
Short Circuit Current (Isc/A)13.85 / 11.1713.92 / 11.2313.99 / 11.2914.05 / 11.3414.10 / –
Voltage at Pmax (Vmp/V)41.65 / 38.8641.80 / 39.0041.95 / 39.1442.10 / 39.2842.25 / –
Current at Pmax (Imp/A)12.97 / 10.3913.04 / 10.4513.12 / 10.5113.19 / 10.5613.26 / –
Module Efficiency (%)20.921.121.321.521.7

Test uncertainty for Pmax: ±3%


Rear Side Power Gain (Reference: 550W Front)

Pmax (W)Voc (V)Isc (A)Vmp (V)Imp (A)Power Gain
57849.8014.6841.9513.77+5%
60549.8015.3841.9514.43+10%
63349.9016.0842.0515.08+15%
66049.9016.7842.0515.74+20%
68849.9017.4842.0516.39+25%

Operating Parameters

  • Temperature Range: -40°C to +85°C

  • Power Output Tolerance: 0 to +3%

  • Voc/Isc Tolerance: ±3%

  • Max System Voltage: DC1500V (IEC/UL)

  • Max Series Fuse: 30A

  • Nominal Cell Temp: 45±2°C

  • Protection Class: Class II

  • Bifaciality: 70±5%

  • Fire Rating: UL Type 29 / IEC Class C


Mechanical Load & Environmental Tests

ParameterSpecification
Front Static Load5400Pa
Rear Static Load2400Pa
Hail Test25mm hail @ 23m/s

Temperature Coefficients (STC)

ParameterCoefficient
Isc Temp Coefficient+0.050%/°C
Voc Temp Coefficient-0.265%/°C
Pmax Temp Coefficient-0.340%/°C

Certifications & Compliance

  • IEC 61215, IEC 61730, UL 61730

  • ISO 9001:2015 (Quality Management)

  • ISO 14001:2015 (Environmental Management)

  • ISO 45001:2018 (Occupational Health & Safety)

  • IEC 62941 (Module Design Qualification)


 

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 Manufacturers & 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. Click here to.

2. Custom Your Bulk Solar Panel

Identify 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.

Types/Functions

High-power panels, Mix types to match diverse applications (residential, commercial, industrial).

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

    • Smart panels (with built-in monitoring).

Custom Solar Panel For Your Brand

We provide custom solutions to all our customers and offer free consulting or samples of Solar Panels that you can take advantage of.

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