Sanyo HIP-190BA3 190 Watt Solar Panel The SANYO HIT (Heterojunction with Intrinsic Thin Layer) solar cell is made of a thin single crystalline silicon wafer surrounded by ultra-thin amorphous silicon layers. This product is a leader in quality and performance using advanced manufacturing techniques. SANYO HIT 190 Specifications: Model Number: HIP-190BA3 Max. Power (Pmax): 190 Watts Max. Power Voltage (Vpm): 54.8 Volts Max. Power Current (Ipm): 3.47 Amps Open Circuit Voltage (Voc): 67.5 Volts Short Circuit Current (Isc): 3.75 Amps Cell Conversion Efficiency: 18.5% Panel Conversion Efficiency: 16.1% Warranted Minimum (Pmin): 171.0 Watts PTC Rating: 178.7 Watts Max. System Voltage: 600 Volts Series Fuse: 15 Amps Temp. Coefficient of Pmax (%/C): -0.3 Dimensions: 51.9" x 35.2" X 1.4" (1319mm X 894mm x 35mm) Weight: 30.9 lbs. (14kg) Certificate: UL 1703 Class C fire rating HIP panels can withstand 1 inch diameter hailstones at 50 mph