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Lesso New Energy 665D(HPM) 665W P-Type Monofacial Solar Panel
Model 665D(HPM) | P-Type Monocrystalline | 132 Half-Cell | Monofacial | 1500V System Voltage
Product Overview
The Lesso New Energy 665D(HPM) is a high-output 665W solar panel built for demanding commercial and utility projects. It uses 210mm mono-crystalline half-cells and a monofacial layout for reliable energy generation. The module reaches up to 21.41% efficiency, helping maximize usable roof or ground space. Its durable construction supports long-term outdoor performance in varied environments. This model is designed to deliver strong power density, stable operating behavior, and dependable value over many years.
Key Benefits
High power output: The module delivers up to 665W for strong system-level energy yield.
Efficient space use: High module efficiency helps generate more power from limited installation space.
MBB half-cut design: Multi-busbar half-cut cell technology improves shading tolerance and reduces hotspot risk.
Stable performance: Low temperature coefficients support better output under higher operating temperatures.
Durable construction: The module is tested for sand, dust, salt mist, and ammonia resistance.
Long-term reliability: Strict material control supports reduced PID, LID, and long service life.
How It Works
The 665D(HPM) converts sunlight into electricity through high-efficiency mono-crystalline half-cells. Its 132-cell arrangement helps balance current flow and improve electrical performance. The half-cut format lowers resistive losses, which supports stronger output in real-world conditions. The module also uses series and parallel design principles to raise power production. In addition, its low temperature coefficient helps maintain better performance when module temperatures increase. These design choices work together to improve reliability, output, and long-term energy generation.
Half-cell architecture: Cells are split into two parts to reduce resistance and improve current handling. This supports higher output and better shade tolerance.
Series and parallel layout: The internal layout helps reduce series resistance. It also supports higher power output and lower BOS cost.
Thermal performance control: A lower temperature coefficient helps reduce power loss in heat. This keeps the module producing more energy during warm conditions.
Technical Specifications
| Product Brand | Lesso New Energy |
| Model | 665D(HPM) |
| Power Range | 645W ~ 665W |
| Maximum Efficiency | 21.41% |
| Power Output Tolerance | 0W ~ +5W |
| Solar Cell Type | 210mm Mono-crystalline Half-Cell |
| Solar Cell Arrangement | 132 pcs (6 × 22) |
| Module Dimension | 2384 × 1303 × 35 mm |
| Weight | 33.8 kg |
| Front Glass | 3.2 mm tempered glass with anti-reflective coating |
| Back Sheet | White |
| Frame | Anodized aluminum alloy |
| Junction Box | IP68 rated |
| Cable | 4mm², portrait 4200mm (+/−), landscape 1400mm (+/−), customizable length |
| Diode Quantity | 3 pcs |
| Maximum Front Load | 5400 Pa |
| Maximum Rear Load | 2400 Pa |
| Connector | MC4 compatible |
| Per Pallet | 31 pcs |
| Per Container (40'HQ) | 558 pcs |
| Nominal Max Power Pmax | 645W / 650W / 655W / 660W / 665W |
| Module Efficiency by Model | 20.76% / 20.92% / 21.09% / 21.25% / 21.41% |
| NMOT | 44 ± 2°C |
| Temperature Coefficient of Isc | +0.048% |
| Temperature Coefficient of Voc | -0.26% |
| Temperature Coefficient of Pmax | -0.34% |
| Working Temperature | -40 ~ +85°C |
| STC | Irradiance 1000W/m², Cell Temperature 25°C, Air Mass AM1.5 |
Certifications & Compliance
Certifications: LESSO Group product documentation and factory quality control referenced in the datasheet.
Inverter Compatibility: MC4 compatible connector supports standard PV system integration.
Environmental: Tested for sand, dust, salt mist, and ammonia resistance for outdoor use.
Warranty: 12 years product workmanship warranty and 25 years linear power output warranty, with 2% first-year degradation and 0.55% annual degradation.
Documentation
Product Datasheet (PDF)● Available | Contact us for lead time and pricing
| SKU | PES-SPS-SOL-11644 |
|---|---|
| Manufacturer | PES Supply |
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