The description of polycrystalline solar module is as follow:
Maximum power: 15W;
Maximum power voltage: 18V;
Maximum power current: 0.834A;
Open circuit voltage: 21.6V;
Shot circuit current; 0.95A;
Dimensions: 500*270*25mm;
Number of cells: 36PCS;
Maximum system voltage: 600V;
Power tolerance: ± 3 to 5%;
Front glass: 3.5mm toughened glass;
Frame(material, corner, and more): Aluminum alloy;
Standard testing condition: AM1.5, 1000Wm2/, 25º C;
Operating temperature: -40 to +85º C;
Voltage temperature coefficient: -0.33%;
Current temperature coefficient: +0.05%;
Power temperature coefficient: -0.23%;
Solar module weight: 2kg;
Warranty: 2 to 5years quality warranty and 25years lifespan;
Sealed junction box with water proof, cabling and connectors.