Solar panels Relevant index: 1) power range: from 10wp to 280wp 2) mono crystalline or poly crystalline 3) packing method: carton 4) quality: first grade and good efficiency of cell, glass used low-carbon toughened Glass 5) warranty: 2 years warranty and 25 years 80% of power 6) standard test conditions: am1.5 100mw/cm2 25ípc 7) tolerance: +/-5%, solar cell's efficiency can get to above 16% 8) approvals: CE iec61215 9) regarding to measure, we can according to your demands to produce 10) certification: CE, CE, certificate, tuv is under auditing 11) system voltages: 12v/24v