JA 550W 36V Half Cell Mono crystalline Solar Panel JAM72S30-550 is a solar panel that uses half-cut monocrystalline silicon cells to convert sunlight into electricity. Half-cut cells means that the traditional 60 or 72 cell panels are cut in half, resulting in several advantages: Higher power output: Even when shaded, half-cut cells can outperform traditional cells because only half the cell is affected. Lower temperature coefficient: Half-cut cells run cooler, which can improve efficiency. Less shading effect: Partial shading on a traditional panel can significantly reduce power output, but half-cut cells are less affected. Better mechanical loading tolerance: Half-cut cells can better handle wind and snow loads. Peak power: 550 watts Maximum power voltage: 36 volts Mono panel Size: 2279 x 1134 x 35 mm Warranty: 10 years