SunTech Power STP170S-24Ab-1 24 Volt 170 Watt PV Module Sold as quantities of eight or more only Specifications Cell: Monocrystalline silicon solar cells 125 x 125mm No. of cells and connections: 72 (6x12) Dimension of module: 62.20" x 31.81" x 1.38" / 1580 x 808 x 35mm Weight: 34.1 lbs. / 15.5 kg Characteristics Open circuit voltage (Voc) 43.8v Optimum operating voltage (Vmp): 35.2v Short circuit current (Isc) 5.14a Optimum operating current (Imp): 4.83a Maximum power at STC (Pm): 170Wp Maximum series fuse rating: 8a Limits Operating temperature: -40 to +85 C Maximum system voltage: 600VDC Temperature and Coefficients Nominal Operation Cell Temperature (NOCT): 48 C +- 2 C Current temperature coefficient %/K: 0.06 +- 0.01 Voltage temperature coefficient mV/K: -(155 +- 10) Power temperature coefficient %/K: -(0.5 +- 0.05) Output Type of output terminal: MC3 Connector (data sheet inaccurate) Cable: A.I.W. (4.0 mm sq.) Asymmetrical lengths: 1200mm(-) and 800mm(+) Connection: MC PV-KBT311/PV-KST311 Performance High power tolerance (+- 3%) Nominal 24 V Built for long service life Cells embedded in EVA (ethylene vinyl acetate) Transmissive low-iron, tempered glass on the front Weather and waterproof film back High strength frame Simple installation Polarized Multi-Contact DC-rated waterproof connectors Clear anodized aluminum frame with pre-drilled holes High quality standards Optical, mechanical and electrical module testing during and post-production Warranties 2 year product warranty 12 year warranty on 90% of the minimum output 25 year warranty on 80% of the minimum output Certifications IEC, UL 1703 (US modules), TUV (European Modules), CE, CEC (US modules)