Longi 405~425W HALF-CELL LR4-66HPH Half‑Cut Monocrystalline Solar Panel
- Category: Longi Solar Panels
- Features
Product Description
LONGi LR4-66HPH 405-425W Monocrystalline Solar Panel
LONGi LR4-66HPH series is a high-efficiency monocrystalline solar module designed for residential, commercial, and utility-scale solar applications. Featuring advanced PERC cell technology, optimized module design, and excellent low-light performance, this series delivers reliable power generation and long-term energy output.
With a power range of 405W-425W, high conversion efficiency, strong durability, and superior temperature performance, LONGi LR4-66HPH solar panels provide an ideal solution for rooftop installations and large-scale photovoltaic projects requiring stable and efficient solar energy production.
Product Features
High Power Output
Power output range from 405W to 425W, maximizing energy generation per installation area.
High module efficiency up to approximately 20.8%, improving overall system performance.
Advanced PERC Technology
Equipped with high-quality monocrystalline PERC cells for enhanced light absorption.
Improved energy yield under different environmental conditions.
Excellent Low-Light Performance
Optimized cell structure ensures higher energy generation during mornings, evenings, and cloudy conditions.
Reliable and Durable Design
Strong aluminum alloy frame provides excellent mechanical stability.
Designed to withstand harsh outdoor environments with high resistance to wind and snow loads.
Long-Term Performance
High reliability with excellent degradation control.
Suitable for long-term photovoltaic projects with stable energy output.
Wide Application Range
Ideal for:
Residential rooftop solar systems
Commercial & industrial PV projects
Utility-scale solar power plants
Distributed energy systems
Specifications
Electrical Characteristics (STC)
| Model | LR4-66HPH-405M | LR4-66HPH-410M | LR4-66HPH-415M | LR4-66HPH-420M | LR4-66HPH-425M |
|---|---|---|---|---|---|
| Maximum Power (Pmax) | 405W | 410W | 415W | 420W | 425W |
| Module Efficiency | 19.8% | 20.1% | 20.3% | 20.6% | 20.8% |
| Maximum Power Voltage (Vmp) | 37.1V | 37.3V | 37.5V | 37.7V | 37.9V |
| Maximum Power Current (Imp) | 10.92A | 11.00A | 11.07A | 11.14A | 11.22A |
| Open Circuit Voltage (Voc) | 44.6V | 44.8V | 45.0V | 45.2V | 45.4V |
| Short Circuit Current (Isc) | 11.52A | 11.59A | 11.66A | 11.73A | 11.80A |
Mechanical Characteristics
| Item | Specification |
|---|---|
| Solar Cell Type | Monocrystalline Silicon |
| Cell Technology | PERC |
| Number of Cells | 132 cells |
| Module Dimension | 2094 × 1038 × 35 mm |
| Weight | Approx. 22 kg |
| Front Glass | 3.2 mm tempered glass |
| Frame | Anodized aluminum alloy |
| Junction Box | IP68 rated |
| Connector | MC4 compatible |
| Operating Temperature | -40℃ to +85℃ |
Operating Parameters
| Item | Specification |
|---|---|
| Maximum System Voltage | 1500V DC |
| Power Tolerance | 0 ~ +5W |
| Temperature Coefficient of Pmax | -0.35%/℃ |
| Temperature Coefficient of Voc | -0.27%/℃ |
| Temperature Coefficient of Isc | 0.048%/℃ |
| Application | Residential / Commercial / Utility Solar Systems |
