Solartech SPM040P-N 40-Watt 12-Volt Polycrystalline PV Solar Panel Cable Lengths: 3 ft w/ MC4 Connectors ; Junction Box: IP-65 Rated ; Frame: Anodized Aluminum Alloy ; Front Glass: 3.2mm tempered Power at STC (PM): 40 Watts ; Maximum Power Voltage (Vpm): 17.3 Volts ; Maximum Power Current (lpm): 2.35 Amp ; Open Circuit Voltage (Voc): 21.8 Volts ; Short Circuit Current (lsc): 2.57 Amp UL Certified: E330673 ; TUV: 0000022551; IEC: C1-ASN07001; ETL: 4001057 Operating Temp: -40 to + 85 C / - 40 to + 185 F ; Maximum System Voltage: 1000V DC ; Series Fuse Rating: 12A 25 Year Manufacturer Limited Warranty