Product details
HAITAI Solar 665W Bifacial Monocrystalline Black Frame Solar Panel – 665W High-Efficiency PV Module
Harness the power of renewable energy with the HAITAI Solar 665W Bifacial Monocrystalline Solar Panel, designed to deliver high energy output, excellent efficiency, and reliable performance for residential, commercial, and large-scale solar installations.
Featuring advanced bifacial technology, this high-performance solar module captures sunlight from both the front and rear surfaces, allowing it to generate additional electricity from reflected sunlight. Depending on installation conditions and the surrounding reflective environment, bifacial technology can significantly increase overall energy production.
With a rated maximum power output of 665W and module efficiency of 21.41%, the HAITAI solar panel provides excellent energy generation capacity while making efficient use of available installation space.
Built using high-quality monocrystalline photovoltaic cells and advanced multi-busbar half-cut cell technology, this solar module is engineered to improve electrical performance, minimise power losses, and enhance long-term reliability.
Its durable dual-glass construction provides additional protection against environmental conditions, while the robust black anodised aluminium alloy frame offers structural strength for professional solar installations.
The panel features an IP68-rated junction box and MC4-compatible connectors, allowing convenient integration into compatible photovoltaic systems. With support for maximum system voltage configurations of up to 1500V DC, it is suitable for appropriately designed residential, commercial, and utility-scale solar arrays.
Whether expanding an existing solar installation or building a new renewable energy system, the HAITAI Solar 665W Bifacial Solar Panel offers an excellent combination of high power output, efficiency, and durability.
FEATURES:
- High 665W rated maximum power output.
- Advanced bifacial monocrystalline photovoltaic technology.
- Generates electricity from both front and rear panel surfaces.
- High module conversion efficiency of 21.41%.
- Advanced multi-busbar half-cut cell technology.
- 132-cell configuration for efficient solar energy conversion.
- Durable dual-glass construction for enhanced protection.
- Black anodised aluminium alloy frame.
- Up to 25% bifacial gain potential under suitable conditions.
- High-performance electrical characteristics for solar array installations.
- IP68-rated junction box for environmental protection.
- MC4-compatible connectors for convenient system integration.
- Supports 1000V and 1500V DC system configurations.
- Designed for residential, commercial, and utility-scale applications.
- Engineered to withstand demanding outdoor environmental conditions.
- Suitable for rooftop and ground-mounted solar installations.
SPECIFICATIONS:
GENERAL
- Brand: HAITAI Solar
- Product Type: Photovoltaic Solar Panel
- Product Code: HAITAI SOLAR 665W BF
- Module Series: HTM650~670DMH8-66
- Rated Power Output: 665W
- Solar Technology: Bifacial Monocrystalline
- Cell Configuration: 132 Cells
- Module Efficiency: 21.41%
- Frame Colour: Black
- Frame Material: Anodised Aluminium Alloy
ELECTRICAL SPECIFICATIONS
- Maximum Power (Pmax): 665W
- Voltage at Maximum Power (Vmp): 37.99V
- Current at Maximum Power (Imp): 17.51A
- Open Circuit Voltage (Voc): 45.89V
- Short Circuit Current (Isc): 18.58A
- Maximum System Voltage: 1000V / 1500V DC options
- Module Efficiency: 21.41%
SOLAR CELL TECHNOLOGY
- Cell Type: Monocrystalline
- Cell Technology: Multi-Busbar Half-Cut
- Cell Count: 132
- Bifacial Technology: Yes
- Maximum Bifacial Gain: Up to 25% (model listing specification)
- Front Glass: 2mm
- Rear Glass: 2mm
TEMPERATURE SPECIFICATIONS
- Operating Temperature: -40°C to +85°C
- Temperature Coefficient of Pmax: -0.34%/°C
- Temperature Coefficient of Voc: -0.25%/°C
- Temperature Coefficient of Isc: +0.04%/°C
MECHANICAL SPECIFICATIONS
- Dimensions: 2384 × 1303 × 35mm
- Weight: Approximately 39kg
- Frame: Black Anodised Aluminium Alloy
- Construction: Dual Glass
- Junction Box Protection: IP68
- Connector Type: MC4-Compatible
- Positive Cable Length: 250mm
- Negative Cable Length: 300mm
LOAD & DURABILITY
- Maximum Snow Load: 5400Pa
- Maximum Wind Load: 2400Pa
- Maximum Operating Temperature: +85°C
- Minimum Operating Temperature: -40°C
APPLICATIONS
- Residential Solar Power Systems
- Commercial Solar Installations
- Industrial Solar Projects
- Ground-Mounted Solar Arrays
- Rooftop Solar Installations
- Hybrid Solar Systems
- Grid-Tied Solar Systems
WHAT’S IN THE BOX:
- HAITAI Solar 665W Bifacial Monocrystalline Solar Panel x1

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