Solar energy panel 550 watt warranty 20 years

Specifications of a 550-watt solar panel Electrical specifications: Maximum Power (Pmax): 550 watts Open circuit voltage (Voc): about 49-52V Voltage at maximum power (Vmp): about 41-45V Current at maximum power (Imp): about 12-13A Short circuit current (Isc): about 13-14A Module Efficiency: 20% - 22% Physical specifications: Dimensions: approximately 2300 × 1150 × 35 mm Weight: between 25 to 32 kg Number of cells: usually 144 cells (Half Cut) Glass type: low reflection tempered glass Frame: made of corrosion-resistant aluminum Environmental specifications: Temperature tolerance: -40°C to +85°C Wind resistance: up to 2400 Pascals Snow resistance: up to 5400 Pascals Optimal operating temperature: 25°C