The 170-watt and larger modules are designed for use in high-voltage gridtie applications, but can be used in large industrial and off-grid applications for battery charging if the system includes an appropriate MPPT charge controller such as the OutBack MX-60, Apollo T80 or BlueSky Solar Boost. These modules use 50 square poly-crystalline 156mm cells in series behind tempered glass with anodized aluminum frames, and Multi-Contact locking connector output cables. Positive and negative cables come from junction boxes at opposite ends of the module. The 125-watt modules have Multi-Contact locking connector output cables and are optimized for 12-volt battery charging with 36 cells in series. Made in Japan. UL Listed. 25-year power output warranty. Peak Power (watts) 185 Peak Power Voltage (volts) 24.4 Peak Power Current (amps) 7.58 Open Circuit Voltage (volts) 30.6 Short Circuit Current (amps) 8.13 Max. System Voltage (volts) 600 Series Fuse Rating (amps) 15 Dimensions (inches) Length x Width x Depth(including j-box) 65.3" x 32.6" x 1.8" Weight (lbs) 43