Solar panel from LONGi Solar LR4-66HIH-405M (BFR) 405W Mono

LR4-66HIH-405M (BFR)

LONGi Solar

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Performance data

Nominal Power 405 W
Cell type Mono
Number of cells 132
Cell Format n/a
Module efficiency
20,28 %
Power tolerance Power Tolerance Value
Temp. Coeff. of P(max) -0,35 %/°C
System voltage 1500 V
Optimizer incl. no


Pieces per pallet 31
Pieces per 40 744


Length 1924 mm
Width 1038 mm
Frame 35 mm
Weight 22.0 kg

Other features

Frame/Backsheet black/white
Cable length + / - 1200 mm / 1200 mm
Connector Type n/a
Snow load 5.400 Pa
Wind load 2.400 Pa

Manufacturer warranty

Product warranty 12 years
Warranty 25 years on 84% of nominal power


IEC 61215 - Design Qualification and Type Approval
IEC 61730 - Safety Qualification
IEC TS 62941
ISO 14001
ISO 45001
ISO 9001
UL 61730
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This module by Longi Solar produces up to 405 W, has a black frame and 132 monocrystalline cells.

Frontside: Single glass, 3.2 mm coated tempered glass
Frame: Anodized aluminium alloy frame
Operating Temperature(℃): -40℃~+85℃ 
Junction box: IP68/three diodes
Cable: approx. 1.2 m, 4 mm2
NMOT Temperature: 45 ± 2 ℃

LONGi Solar

LONGi Solar took the lead in the solar PV industry utilizing breakthrough monocrystalline technologies that the company promoted as the future of solar energy technology.

LONGi is recognized as the world's most valuable solar technology company with the highest market value. Its core values are innovation and sustainable development. They focus on achieving long-term reliability for their modules, highest efficiency ratings each year, and desire to build a strong sense of value for their customers' investment.

LONGi won the "TOP PERFORMER" Award for three consecutive years, which confirms the high efficiency, high reliability, and high yield of their monocrystalline modules, and serves as an endorsement of the advanced technology, equipment, product testing, and R&D capabilities of the company.

LONGi received a 100% bankability rating by BloombergNEF in a rating published in October 2021. Based on its performance, stable financial operations and positive reputation in the industry, LONGi ranked top out of 52 companies in the survey for the second consecutive year.


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