This Kyocera Solar Panel with 16Wp +15% -5% capacity is build with multicrystaline solar cells with over 16% efficiency. The panel has a 25 year limited warranty on power output. It measures 51.7 x 28.0 cm and weighs 1.6 kg. With a 4-5kwh/m2 insolation it will deliver 260 kiloJoule/day = 70 watt-hours/day.