LONGi 420W Monofacial Solar Panel
Couldn't load pickup availability
☀️ LONGi 420W Monofacial Solar Panel
Model: LR5-54HPB-420M
Brand: LONGi Solar
Series: Hi-MO 5m
Type: Monofacial Monocrystalline Solar Panel
Cell Technology: M10 Gallium-Doped Monocrystalline Half-Cell
Application: Residential, Commercial & Distributed Solar PV Systems
⚡ Key Features
High-Efficiency 420W Output ☀️
Delivers up to 420W of rated power with an impressive 21.5% module efficiency, maximizing energy generation from limited roof space.
Premium All-Black Design 🏡
Stylish all-black finish blends seamlessly into residential rooftops while maintaining outstanding performance.
Advanced Half-Cell Technology ⚡
108 half-cut monocrystalline cells reduce resistive losses, improve temperature performance, and deliver greater energy production under partial shading.
Gallium-Doped Cell Technology 🌞
Advanced gallium-doped wafers significantly reduce Light-Induced Degradation (LID), improving long-term energy production and reliability.
Exceptional Durability 🛡️
Built with 3.2 mm coated tempered glass and a robust anodized aluminium alloy frame for excellent resistance to harsh weather conditions.
Excellent Long-Term Performance 📈
Designed for decades of reliable energy generation with less than 2% first-year degradation and only 0.55% annual degradation thereafter.
IP68 Junction Box Protection 💧
Sealed IP68-rated junction box provides superior weather resistance for long-term outdoor operation.
📐 Specifications
| Specification | Value |
|---|---|
| Rated Power (Pmax) | 420 W (STC) |
| Module Efficiency | 21.5% |
| Cell Technology | Gallium-Doped Monocrystalline Half-Cell |
| Module Type | Monofacial |
| Cell Configuration | 108 Cells (6 × 18) |
| Maximum Power Voltage (Vmp) | 31.93 V |
| Maximum Power Current (Imp) | 13.16 A |
| Open Circuit Voltage (Voc) | 38.00 V |
| Short Circuit Current (Isc) | 13.90 A |
| Power Tolerance | 0 ~ +3% |
| Maximum System Voltage | 1500 V DC |
| Junction Box | IP68, 3 Bypass Diodes |
| Output Cable | 4 mm², ±1200 mm |
| Front Glass | 3.2 mm Coated Tempered Glass |
| Frame | Anodized Aluminium Alloy |
| Weight | 20.8 kg |
📏 Physical Specifications
| Specification | Details |
| Dimensions | 1722 × 1134 × 30 mm |
| Weight | 20.8 kg |
| Front Glass | 3.2 mm Coated Tempered Glass |
| Frame | Black Anodized Aluminium |
| Packaging | 36 Panels per Pallet |
🔧 Technical & Build
| Specification | Details |
| Cell Type | M10 Gallium-Doped Monocrystalline |
| Busbars | 9 Busbar Technology |
| Module Type | Monofacial |
| Operating Temperature | -40°C to +85°C |
| Temperature Coefficient (Pmax) | -0.340% / °C |
| Temperature Coefficient (Voc) | -0.265% / °C |
| Temperature Coefficient (Isc) | +0.050% / °C |
| NOCT | 45 ± 2°C |
| Mechanical Load | Engineered for High Wind & Snow Loads |
ℹ️ Additional Information
The LONGi Hi-MO 5m 420W Monofacial Solar Panel combines premium aesthetics with advanced monocrystalline technology to deliver excellent efficiency and dependable long-term performance.
Its gallium-doped half-cell architecture improves energy production, reduces operating temperatures, and minimizes long-term degradation, making it an ideal solution for residential rooftops, commercial buildings, and distributed solar projects.
The sleek all-black appearance enhances the look of modern roof installations while providing industry-leading reliability and consistent power generation throughout its service life.
🏷️ Certifications
- IEC 61215
- IEC 61730
- UL 61730
- IEC 62941
- ISO 9001:2015 Quality Management System
- ISO 14001:2015 Environmental Management System
- ISO 45001:2018 Occupational Health & Safety Management System
🏷️ Quality & Support
The LONGi 420W Monofacial Solar Panel delivers high efficiency, premium aesthetics, and exceptional long-term reliability for residential and commercial solar installations. Featuring advanced gallium-doped monocrystalline half-cell technology and a durable all-black design, it is engineered to maximise energy production while maintaining dependable performance for decades. Backed by a 12-year product warranty and a 25-year linear performance warranty, it offers a reliable and cost-effective solar solution for modern photovoltaic systems.
We Don’t Just Beat Quotes — We Build Better Systems.
Our certified installers design each PV setup for maximum performance and long-term reliability. Every installation is backed by full warranty support and genuine spare parts, ensuring your investment delivers power — and peace of mind — for years to come.