The Replus-250A is for 240VAC grid-intertie solar systems. The ReneSola is a smart grid-tie microinverter developed by Renesola for rooftop and ground mount solar systems. These essentially turn each solar module into a mini AC grid-tie power system. The Micro Replus 250A inverter is particularly nice for low-cost projects with low light or shading issues. Micro Replus inverters increase the total energy output of a solar panel array, especially when covered in shade or debris. It is designed to withstand harsh weather conditions with its weatherproof cabling and silicone potted enclosure. The smart design of ReneSola's Micro Replus 250A inverters improve solar PV harvesting and reliability. The Micro Replus System includes the micro-inverter, MRG Communications Gateway, and Monitoring Software. Compatibility Compatible with most modern high-voltage PV modules. For use with 240 Volt AC utility power. No Wiring Harness The ReneSola Micro Replus-250A does not require a cable harness. Renesola micro inverters come with two wires with MC4 connectors and a AC cable with patented connectors to interconnect up to 15 micro-inverters in one branch circuit. All the cables are long enough to facilitate an installation with modules oriented in both, portrait and landscape