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Flagsun Green Power FSM660-340W 340W Monocrystalline Solar Panel
Model FSM660-340W | Monocrystalline | 60 Cells | Monofacial | 1000V System Voltage
Product Overview
The Flagsun Green Power FSM660-340W is a high-efficiency monocrystalline solar panel designed for dependable energy production. It delivers a maximum power output of 340 Wp, making it suitable for residential and commercial solar projects. The module combines strong electrical performance with a durable structure for long-term use. Its 20.9 percent efficiency supports excellent energy conversion from limited roof or ground space. The panel is built with tempered glass and an anodized aluminium frame for added strength. It operates across a wide temperature range, which supports stable output in changing climates. This model is an excellent choice for buyers seeking reliable solar performance and compact system design.
Key Benefits
High power output: The module provides 340 Wp for efficient solar energy generation.
Strong efficiency rating: Its 20.9 percent efficiency helps maximize output from available installation space.
Stable electrical performance: A low power tolerance of 0 to +3 percent supports consistent rated performance.
Durable construction: Tempered 3.2 mm glass and an anodized aluminium frame improve protection and service life.
Wide operating range: The panel performs across -40 to 85 °C for versatile outdoor use.
How It Works
This monocrystalline panel converts sunlight into direct current through high-quality silicon cells. The module is designed to produce strong voltage and current under standard operating conditions. Its electrical design supports efficient energy harvesting during daytime exposure. The low temperature coefficients help reduce performance loss when module temperatures rise. The tempered glass surface allows sunlight to reach the cells while protecting them from environmental stress. The aluminum frame adds structural support for secure mounting. Together, these features help the panel generate reliable solar power in real-world conditions.
Photon absorption: Sunlight strikes the monocrystalline cells and creates electrical current. The process begins as light energy is converted into usable DC power.
Power generation: The module reaches its maximum power at 34.5 V and 9.89 A. This supports efficient output under optimal conditions.
Environmental control: The temperature coefficients help manage performance shifts during heat exposure. This contributes to steadier production across seasons.
Technical Specifications
| Brand | Flagsun Green Power Co., Ltd. |
| Model Number | FSM660-340W |
| Cell Technology | Monocrystalline |
| Maximum Power | 340 Wp |
| Power Tolerance | 0 ~ +3 % |
| Voltage at Maximum Power | 34.5 V |
| Current at Maximum Power | 9.89 A |
| Open Circuit Voltage | 41.9 V |
| Short Circuit Current | 10.56 A |
| Panel Efficiency | 20.9 % |
| Temperature | 45±2 °C |
| Operating Temperature Range | -40 - 85 °C |
| Temperature Coefficient of Pmax | -0.43 %/°C |
| Temperature Coefficient of Voc | -0.34 %/°C |
| Temperature Coefficient of Isc | 0.049 %/°C |
| Glass Type | Tempered Glass |
| Glass Thickness | 3.2 mm |
| Frame Type | Anodized Aluminium |
| Power Range | 315 ~ 340 Wp |
| Panel Efficiency Range | 19.4 ~ 20.9 % |
| Seller Name | Flagsun Green Power Co., Ltd. |
| Country of Origin | China |
Certifications & Compliance
Certifications: Not provided in the supplied content.
Inverter Compatibility: Compatible with standard grid-tied and off-grid solar systems, subject to system design.
Environmental: Designed for outdoor operation from -40 to 85 °C.
Warranty: Warranty details were not provided in the supplied content.
● Available | Contact us for lead time and pricing
| SKU | PES-SPS-SOL-5647 |
|---|---|
| Manufacturer | PES Supply |
| Container price | |
| Container qty | |
| Odoo id | |
| Pallet price | |
| Pallet qty | |
| Unit price | |
| Manufacturer | |
| Model number | |
| Wattage |
No documents available for this product. Contact us to request documentation.

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Specifications
Product Description
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Flagsun Green Power FSM660-340W 340W Monocrystalline Solar Panel
Model FSM660-340W | Monocrystalline | 60 Cells | Monofacial | 1000V System Voltage
340 WpMax Power Output20.9%Module EfficiencyMonocrystallineCell TechnologyProduct Overview
The Flagsun Green Power FSM660-340W is a high-efficiency monocrystalline solar panel designed for dependable energy production. It delivers a maximum power output of 340 Wp, making it suitable for residential and commercial solar projects. The module combines strong electrical performance with a durable structure for long-term use. Its 20.9 percent efficiency supports excellent energy conversion from limited roof or ground space. The panel is built with tempered glass and an anodized aluminium frame for added strength. It operates across a wide temperature range, which supports stable output in changing climates. This model is an excellent choice for buyers seeking reliable solar performance and compact system design.
Key Benefits
High power output: The module provides 340 Wp for efficient solar energy generation.
Strong efficiency rating: Its 20.9 percent efficiency helps maximize output from available installation space.
Stable electrical performance: A low power tolerance of 0 to +3 percent supports consistent rated performance.
Durable construction: Tempered 3.2 mm glass and an anodized aluminium frame improve protection and service life.
Wide operating range: The panel performs across -40 to 85 °C for versatile outdoor use.
How It Works
This monocrystalline panel converts sunlight into direct current through high-quality silicon cells. The module is designed to produce strong voltage and current under standard operating conditions. Its electrical design supports efficient energy harvesting during daytime exposure. The low temperature coefficients help reduce performance loss when module temperatures rise. The tempered glass surface allows sunlight to reach the cells while protecting them from environmental stress. The aluminum frame adds structural support for secure mounting. Together, these features help the panel generate reliable solar power in real-world conditions.
Photon absorption: Sunlight strikes the monocrystalline cells and creates electrical current. The process begins as light energy is converted into usable DC power.
Power generation: The module reaches its maximum power at 34.5 V and 9.89 A. This supports efficient output under optimal conditions.
Environmental control: The temperature coefficients help manage performance shifts during heat exposure. This contributes to steadier production across seasons.
Technical Specifications
Brand Flagsun Green Power Co., Ltd. Model Number FSM660-340W Cell Technology Monocrystalline Maximum Power 340 Wp Power Tolerance 0 ~ +3 % Voltage at Maximum Power 34.5 V Current at Maximum Power 9.89 A Open Circuit Voltage 41.9 V Short Circuit Current 10.56 A Panel Efficiency 20.9 % Temperature 45±2 °C Operating Temperature Range -40 - 85 °C Temperature Coefficient of Pmax -0.43 %/°C Temperature Coefficient of Voc -0.34 %/°C Temperature Coefficient of Isc 0.049 %/°C Glass Type Tempered Glass Glass Thickness 3.2 mm Frame Type Anodized Aluminium Power Range 315 ~ 340 Wp Panel Efficiency Range 19.4 ~ 20.9 % Seller Name Flagsun Green Power Co., Ltd. Country of Origin China Certifications & Compliance
Certifications: Not provided in the supplied content.
Inverter Compatibility: Compatible with standard grid-tied and off-grid solar systems, subject to system design.
Environmental: Designed for outdoor operation from -40 to 85 °C.
Warranty: Warranty details were not provided in the supplied content.● Available | Contact us for lead time and pricing
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