LonGi 425W Solar Panel Overview
The LonGi 425W Solar Panel (LR5-54HTB) is designed for the distribution market, offering a pure black appearance for a sleek, elegant look. With a maximum module efficiency of 23.0%, this panel delivers top-tier performance in energy generation. The advanced technology and high durability ensure a long-term, reliable output, backed by a 25-year product and linear power warranty. This model operates efficiently even in high-temperature environments, making it ideal for a wide range of applications.
LonGi 425 Watt Solar Panel Key Features
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Power Output: 425-440W
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Module Efficiency: Up to 23.0%
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Power Degradation: Less than 1.5% during the first year, with a maximum of 0.40% per year thereafter (years 2-25)
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Lower Operating Temperature: Improves efficiency and energy output
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Durable Design: IP68-rated junction box and tempered glass for enhanced durability
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Half-Cell Technology: Reduces power loss, enhances performance
LonGi 425W Datasheet
Mechanical Parameters
Cell Orientation |
108 (6×18) |
Junction Box |
IP68, three diodes |
Output Cable |
4mm², ±1200mm |
Glass |
Single glass, 3.2mm coated tempered glass |
Frame |
Anodized aluminum alloy frame |
Weight |
20.8kg |
Dimension |
1722×1134×30mm |
Packaging |
36pcs per pallet / 216pcs per 20' GP / 936pcs per 40' HC |
Electrical Characteristics
Module Type |
LR5-54HTB-425M |
LR5-54HTB-430M |
LR5-54HTB-435M |
LR5-54HTB-440M |
Testing Condition |
STC/NOCT |
STC/NOCT |
STC/NOCT |
STC/NOCT |
Maximum Power (Pmax/W) |
425 / 318 |
430 / 321 |
435 / 325 |
440 / 329 |
Open Circuit Voltage (Voc/V) |
39.23 / 36.84 |
39.43 / 37.02 |
39.63 / 37.21 |
39.83 / 37.40 |
Short Circuit Current (Isc/A) |
13.93 / 11.25 |
14.00 / 11.31 |
14.10 / 11.37 |
14.15 / 11.43 |
Voltage at Maximum Power (Vmp/V) |
33.36 / 30.08 |
33.36 / 30.16 |
33.36 / 30.26 |
33.36 / 30.34 |
Current at Maximum Power (Imp/A) |
12.90 / 10.56 |
12.97 / 10.62 |
13.05 / 10.68 |
13.12 / 10.75 |
Module Efficiency (%) |
21.8 / 22.0 |
22.0 / 22.2 |
22.3 / 22.5 |
22.5 / 22.7 |
Operating Parameters
Operational Temperature |
-40°C to +85°C |
Power Output Tolerance |
0 ~ +3% |
Voc and Isc Tolerance |
±3% |
Maximum System Voltage |
DC1500V (IEC/UL) |
Maximum Series Fuse Rating |
25A |
Nominal Operating Cell Temperature |
45±2°C |
Protection Class |
Class II |
Fire Rating |
UL Type 1 or 2 / IEC Class C |
Mechanical Loading
Front Side Maximum Static Loading |
5400Pa |
Rear Side Maximum Static Loading |
2400Pa |
Hailstone Test |
25mm hailstone at the speed of 23m/s |
Temperature Ratings (STC)
Temperature Coefficient of Isc |
+0.050%/°C |
Temperature Coefficient of Voc |
-0.230%/°C |
Temperature Coefficient of Pmax |
-0.290%/°C |
Certifications
- IEC 61215, IEC 61730, UL 61730
- ISO9001:2015, ISO14001:2015
- OHSAS 18001:2007
Packaging
- 36 panels per pallet
- 216 panels per 20' GP container
- 936 panels per 40' HC container
Summary
The LonGi 425W Solar Panel (LR5-54HTB) combines cutting-edge solar technology with a sleek, all-black aesthetic. Offering superior performance with a maximum efficiency of 23.0% and robust durability, it is the ideal solution for distributed projects seeking long-term energy reliability. Its advanced Half-Cell technology reduces power loss, and the module comes with comprehensive warranties of up to 25 years for both materials and linear power output, ensuring dependable energy generation for decades.


LonGi LR5-54HTB, a 425-440W solar panel with high efficiency and durability. The module features a single glass cover and anodized aluminum alloy frame, weighing 20.8kg and measuring 1722x1134x30mm. The electrical characteristics include maximum power of 425W, open circuit voltage of 39.23V, short circuit current of 13.93A, and operating temperature range of -40°C to +85°C.



