LONGi 645W Bifacial Double-Glass Solar Panels with Anti-Glare

Name: LONGi 645W Bifacial Double-Glass Solar Panels with Anti-Glare
Brand: greenwattsa
Price: 1929.0 ZAR
Availability: InStock

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LONGi 645W Bifacial Double-Glass Solar Panel

Model: LR8-66HVD-645M
Brand: LONGi
Type: Bifacial N-Type BC Double-Glass Monocrystalline Solar Panel

Key Features

Anti-Glare - High Transparency and low reflection glass provides efficient and improved antiglare effect suited for spaces where glare behaviour must be managed under standard conditions.
HPBC 2.0 technology is a game-changer for your energy independence:
- Superior Low-Light Performance: The back-contact design means 100% of the front surface captures light. You’ll see better energy production on cloudy days and during the early morning or late evening.
- Smart Shade Protection: Don’t let a single leaf ruin your output. HPBC 2.0 reduces power loss from shading by over 70% and stays up to 60°C cooler than traditional panels, drastically reducing the risk of "hotspots."
- Built to Last (TaiRay Core): Featuring the TaiRay wafer, these panels are 16% stronger against cracks and mechanical stress, ensuring they withstand heavy snow, high winds, and decades of weathering.
- Sleek All-Black Aesthetic: By hiding all metal busbars on the rear, you get a clean, premium look that enhances your home’s curb appeal.

TaiRay - New Generation Silicon Wafer Technology:

Feature	TaiRay Specification	Benefit
Resistivity	0.7–1.4 Ω·cm	Consistent electrical output
Bending Strength	+16% vs. standard	80% reduction in hidden cracks
Compatibility	BC, TOPCon, HJT	Versatile for various high-end panels
Efficiency Boost	~0.1% absolute increase	Incremental power gain across all types

• Bifacial energy generation — increased yield from both front and rear sides
• High module efficiency — up to 24.62% across the series
• Excellent low degradation — 0.1% first year, 0.35% annually (years 2–30)
• Double-glass construction — enhanced durability and long-term reliability
• Optimised thermal performance — better output in high-temperature environments
• High mechanical strength — suitable for harsh weather conditions
• IP68-rated junction box — reliable outdoor performance
• Designed for long lifecycle performance — ideal for modern high-output systems

Specifications

Specification	Details
Rated Power	645W
Module Efficiency	23.88%
Cell Type	N-Type BC Monocrystalline
Cell Configuration	132 Cells (6 × 22)
Power Tolerance	0 ~ +3%
Maximum System Voltage	1500V DC
Maximum Series Fuse Rating	35A
Operating Temperature	-40°C to +85°C
Nominal Operating Cell Temp (NOCT)	45 ± 2°C
Protection Class	Class II
Fire Rating	IEC Class C

Electrical Characteristics (STC)

Specification	Value
Maximum Power (Pmax)	645W
Open Circuit Voltage (Voc)	49.62 V
Short Circuit Current (Isc)	16.46 A
Voltage at Max Power (Vmp)	40.88 V
Current at Max Power (Imp)	15.78 A

Bifacial Performance (Rear Gain)

Gain	Power Output
+5%	677W
+10%	710W
+15%	744W
+20%	776W
+25%	808W

Mechanical Specifications

Specification	Details
Dimensions	2382 × 1134 × 30 mm
Weight	32.5 kg
Glass Type	Dual Glass (2.0mm + 2.0mm Semi-Tempered)
Frame	Anodized Aluminium Alloy
Junction Box	IP68 Rated (3 Diodes)
Output Cable	4mm² (Custom Length Available)

Mechanical Load Ratings

Specification	Details
Front Load Capacity	5400 Pa
Rear Load Capacity	2400 Pa
Hail Resistance	25mm at 23 m/s

Temperature Coefficients

Specification	Value
Isc	+0.050% / °C
Voc	-0.200% / °C
Pmax	-0.260% / °C

Packaging Information

Specification	Details
Panels per Pallet	36
20’ GP Container	144 Panels
40’ HC Container	720 Panels

Certifications & Warranty

• IEC 61215 / IEC 61730 certified
• ISO9001 / ISO14001 / ISO45001 compliant
• IEC62941 manufacturing standard
• 15-Year Product Warranty
• 30-Year Linear Power Output Warranty

Applications

• Utility-scale solar farms
• Commercial and industrial installations
• Large residential solar systems
• Bifacial ground-mounted systems

Quality & Support

The LONGi LR8-66HVD 645W panel delivers high efficiency, low degradation, and strong bifacial performance, making it a reliable choice for high-yield solar installations requiring long-term durability and performance stability.