Specifications:
The DHM-66L9/FS(BW) solar module offers a power output range of 405 to 420W. It is certified under global standards including IEC 61215, IEC 61730, CE, FIDE, and INMETRO. The module adheres to ISO standards for quality, environmental management, and occupational health and safety.

Design and Features:
The module features a curved surface with a 128° R angle, reducing holding pressure by over 75%. This ergonomic design enhances delivery and installation experiences. The module is designed to prevent dust and dirt accumulation, increasing power generation efficiency. It also boasts excellent low irradiance performance and reduced shadow loss.

Technical Specifications:
- Maximum system voltage: 1500V DC
- Operating temperature: -40 to +85°C
- Maximum series fuse rating: 20A
- Snow load (frontside): 5400Pa, Wind load (backside): 2400Pa
- Nominal operating cell temperature: 45°C±2°C
- Weight: 22kg
- Dimensions: 1924×1038×32mm
- Cell type: Mono 166×83mm
- Packing: 34pcs/pallet, 816pcs/40HQ

Electrical Characteristics:
Under standard test conditions (STC), the module's power tolerance is 0~+5W. The temperature coefficients are as follows: Isc: 0.05%/°C, Voc: -0.31%/°C, Pmax: -0.35%/°C. The module efficiency ranges from 20.28% to 21.03% depending on the power output.

Performance Guarantees:
The product comes with a 12-year material and technology warranty and a 25-year linear power output warranty. The linear power output guarantee ensures a gradual decrease in performance, maintaining 98% in the first year and 84.80% by the 25th year.

Graphical Data:
The document includes current-voltage and power-voltage curves under various irradiance levels and cell temperatures, illustrating the module's performance under different conditions.