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13% OFF Painel Solar Monocristalino Ultra Fino de 20W DC5V com Fiação Traseira e Porta USB com Cabo 42,43€ 48,89€ View It

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jns 23/02/2021

This panel measures 254mm x 386mm for solar, less the areas covered by conductors or open between cells. The gross solar input is 98.04W at the AM1.5 standard. At assumed 20% efficiency, the output is 19.61W. Test values of 0.91A at 16.91V resulted in a calculated 15.3881W. The sun was measured at 100,000LUX at 34 north on 2022/02/23. At AM1.5 there should be about 10% more power. Considering the additional 10% and conductor losses, this panel outputs close to what its area predicts and close to the advertised wattage. The USB output will be less.

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