This document is the installation and operations manual for Enphase Microinverter Models M190™ and M210™ by Enphase Energy Inc. It provides instructions on how to install and operate the equipment. The equipment is compliant with FCC regulations and is designed to provide reasonable protection against harmful interference in residential installations. If the equipment causes interference to radio or television reception, the user is advised to try reorienting or relocating the receiving antenna, increasing the separation between the equipment and the receiver, connecting the equipment to a different circuit, or consulting a dealer or experienced radio/TV technician for assistance. Unauthorized changes or modifications may void the user's authority to operate the equipment.