LONGi 650 Watt Solar Panel

It is considered the solar panels from LONGi (LONGi) with a capacity of 630 wattsone of the latest and most powerful panels available in global markets for 2026. These panels rely on very advanced series such as Hi-MO X10 or Hi-MO 9 andHi-MO 7, and they feature exceptional efficiency and excellent resistance to harsh weather conditions and high temperatures.

The approximate technical specifications for the 630 watt panel vary slightly in accuracy based on the selected model (such as the BC back cell model or TOPCon double face), but they generally revolve around the following specifications issued by LONGi factories: 

• Maximum Power (Pmax): 630 watts.
• Cell Type: Monocrystalline with advanced technologies such as HPBC 2.0 or N-Type.
• Module Efficiency: ranges from 23.3% to 24.4% which is exceptional efficiency that reduces the space required for installation.
• Number of Cells: 144 cells (Half-cell - Half-cut).
• Panel Dimensions: approximately 2382 × 1134 × 30 mm.
• Weight: approximately 33.5 kg.
• Junction Box: IP68 protection with 3 diodes.
• Annual Degradation Rate: very low, not exceeding 0.4% annually, ensuring high productivity over the long term. 

Key Features

• Superior performance in high temperatures: Thanks to the excellent temperature coefficient of (-0.26%/°C), the panel maintains stable generation efficiency even in extremely hot weather compared to traditional panels. 
• Bifacial Options: Models are available that absorb light from both the front and back sides, giving you an increase in energy generation of up to an additional 3% depending on the nature of the reflective ground behind the panel.