LonGi 355W Solar Panel Overview
The LonGi 355W Solar Panel (LR4-60HPB) features high-efficiency monocrystalline PERC technology, utilizing Half-Cut cell design to deliver superior energy output and optimized performance. With a maximum power rating of 355W and module efficiency up to 20.3%, this solar panel is ideal for residential, commercial, and utility-scale installations. The robust construction, including a 40mm thick anodized aluminum alloy frame and 3.2mm coated tempered glass, ensures long-lasting durability in harsh environmental conditions. Additionally, its advanced Low LID technology ensures slower power degradation, with a low annual degradation rate of 0.55%, ensuring 91.2% efficiency after 25 years.
LonGi 355W Solar Panel Key Features:
- High Module Efficiency: Module efficiency of up to 20.3%, delivering more power per square meter.
- Positive Power Tolerance: 0 ~ +5W positive power tolerance guarantees reliable energy output.
- Low Power Degradation: The panel experiences slower power degradation, with only a 0.55% annual reduction in output from year 2 to 25.
- PID Resistant: Solid PID resistance ensured by optimized cell process and careful BOM selection, reducing performance loss over time.
- Durability: Can withstand a snow load of up to 5400 Pa and a wind load of 2400 Pa, providing superior performance in various weather conditions.
LonGi 355W Solar Panel Specifications:
| Parameter | Specification |
|---|---|
| Maximum Power (Pmax) | 355W STC / 265.1W NOCT |
| Module Efficiency | 19.5% |
| Maximum Power Voltage (Vmp) | 34.6 V STC / 32.2 V NOCT |
| Maximum Power Current (Imp) | 10.27 A STC / 8.16 A NOCT |
| Open-Circuit Voltage (Voc) | 40.6 V STC / 38.1 V NOCT |
| Short-Circuit Current (Isc) | 11.16 A STC / 9.09 A NOCT |
| Dimensions (L x W x H) | 1755 mm x 1038 mm x 35 mm |
| Weight | 19.5 kg |
| Cable Length | 1200 mm (4 mm²) |
| Junction Box Rating | IP68, 3 Diodes |
| Maximum System Voltage | 1000V DC (IEC/UL) |
| Front Load | 5400 Pa |
| Rear Load | 2400 Pa |
| Fire Rating | UL Type 1 or Type 2 |
| Temperature Coefficient (Pmax) | -0.350%/°C |
| Operating Temperature | -40°C ~ 85°C |
| Power Output Tolerance | 0 ~ +5W |
| Certifications | IEC 61215, IEC 61730, UL 1703, CE, TUV |
Electrical Characteristics (STC & NOCT)
| Model | Pmax (W) | Voc (V) | Isc (A) | Vmp (V) | Imp (A) | Module Efficiency |
|---|---|---|---|---|---|---|
| LR4-60HPB-345M | 345W / 257.6W | 40.2V / 37.7V | 11.06A / 8.95A | 34.2V / 31.8V | 10.09A / 8.09A | 18.9% |
| LR4-60HPB-350M | 350W / 261.4W | 40.4V / 37.9V | 11.16A / 9.02A | 34.4V / 32.0V | 10.18A / 8.16A | 19.2% |
| LR4-60HPB-355M | 355W / 265.1W | 40.6V / 38.1V | 11.16A / 9.09A | 34.6V / 32.2V | 10.27A / 8.16A | 19.5% |
| LR4-60HPB-360M | 360W / 268.8W | 40.8V / 38.2V | 11.25A / 9.09A | 34.8V / 32.4V | 10.35A / 8.23A | 19.8% |
| LR4-60HPB-370M | 370W / 276.3W | 41.2V / 38.6V | 11.50A / 9.30A | 35.2V / 32.8V | 10.52A / 8.43A | 20.3% |
Temperature Coefficients & Mechanical Loading
| Parameter | Value |
|---|---|
| Temperature Coefficient (Isc) | +0.048%/°C |
| Temperature Coefficient (Voc) | -0.270%/°C |
| Temperature Coefficient (Pmax) | -0.350%/°C |
| Front Load | 5400 Pa |
| Rear Load | 2400 Pa |
| Hailstone Test | 25mm hailstone at 23m/s |
Packing Information
- Packing Type: 30 panels per pallet
- Pallet Capacity: 180 panels per 20'GP container, 780 panels per 40'HC container
I-V Curve and Temperature Performance
The LonGi 355W Solar Panel ensures excellent performance in various temperature and irradiance conditions. Its Half-Cut technology enhances the module's output and efficiency, while the 9BB and 6BB cell designs reduce resistive losses and optimize energy yield.
LonGi 355W Solar Panel Summary
The LonGi 355W Solar Panel (LR4-60HPB) is a highly efficient and durable monocrystalline module, designed to deliver superior energy yields in both residential and commercial installations. With a robust construction that can withstand extreme weather conditions and a 25-year linear power output warranty, this panel is built for long-term reliability and excellent performance.
Certifications & Warranty
- Certifications: UL 1703, IEC 61215, IEC 61730, TUV, CE
- Warranty: 12-year materials and workmanship warranty, 25-year linear power output warranty (91.2% efficiency at 25 years)
LonGi 355W Datasheet
Introducing the Longi 355W Solar Panel LR4-60HPB with a power output of 345-370 Watts. This high-efficiency solar panel features Mono PERC technology with half-cut design, offering improved performance and reliability. With a positive power tolerance and guaranteed IEC 61215 and IEC 61730 certifications, this module ensures maximum energy yield while minimizing degradation. The LR4-60HPB also boasts excellent heat resistance, reduced hot spot risk, and optimized electrical design for enhanced system performance.
LonGi 355W Solar Panel (LR4-60HPB, 345-370 Watt) - Mechanical Parameters: Operating Temperature: -40°C to +85°C - Junction Box: IF68, three diodes - Power Output Tolerance: 0~+5 W - Output Cable: 4mm², 30cm in length. Electrical Characteristics: Test Uncertainty for Pmax: 13% - Model Number: LR4-60HPB-345M to LR4-60HPB-370M - Testing Condition: STC, NOCT, I-V Curve
