Photovoltaic panel DAH Solar DHN-48Z20/DG(BW) 465–485 W – N-type TOPCon, bifacial, double glass

DAH Solar DHN-48Z20/DG(BW) is a high-efficiency bifacial photovoltaic module with a power of 465 to 485 W , designed for solar systems where high yield, reliability and long service life are top priorities. The module uses N-type TOPCon cells and double glass construction, which provide excellent performance under various lighting conditions and high resistance to external influences.

One of the main advantages of the series is the two-sided production of electricity (bifacial) . The back side of the panel can use the sunlight reflected from the roof, ground surface or other base, with the manufacturer indicating a bifacial factor of 80 ± 5% . Depending on the installation conditions and the reflectivity of the surface, additional production from the back side can reach 5–25% .

The No-Busbar technology used reduces the length of the power transmission path by approximately 40%, which helps to limit electrical losses and improve conversion efficiency. The N-type TOPCon technology, in turn, offers low degradation, good temperature coefficient and efficient operation in lower light conditions.

The double-glazed construction provides higher mechanical resistance and reliable protection of the cells. The front glass is 2.0 mm thick, has high light transmission and anti-reflective coating. The module is designed to withstand snow loads of up to 5400 Pa on the front side and wind loads of up to 2400 Pa on the back side.

Additional protection is provided by the use of butyl rubber and butyl adhesive, characterized by low water vapor permeability, good resistance to high temperatures and weathering, as well as excellent insulating and bonding properties. This contributes to better protection of the module during prolonged outdoor operation.

With a maximum efficiency of up to 24.27% at STC , a maximum system voltage of 1500 V DC and a wide operating temperature range from -40 to +85 °C , the DAH Solar DHN-48Z20/DG(BW) is suitable for both residential and commercial photovoltaic installations, as well as larger-scale solar projects.

The manufacturer provides a 25-year warranty on materials and technology and a 30-year linear warranty on output power . According to the warranty schedule, the module retains 99% in the first year , and the guaranteed power reaches 87.4% in the 30th year .

Main advantages

• Power from 465 to 485 W
• High-efficiency N-type TOPCon cells
• Module efficiency up to 24.27%
• Bifacial technology for power generation on the back side as well
• Bifacial factor 80 ± 5%
• Potential for 5–25% additional production from the back side depending on conditions
• No-Busbar technology to reduce electrical losses
• Double glass construction with high mechanical resistance
• High-transmittance glass with anti-reflective coating
• Excellent low-light performance
• Low temperature coefficient of maximum power: -0.29%/°C
• Maximum system voltage 1500 V DC
• Snow load resistance up to 5400 Pa
• Wind load resistance up to 2400 Pa
• Junction box IP68
• Compatible with MC4 connectors
• 25-year warranty on materials and technology
• 30 years linear power output warranty