The Tigo EI Link is the communications hub and central wiring point for the EI Residential Solution. It connects the EI Inverter with the EI Battery and enables a fast, simple, and clean installation. Features and benefits include: Built-in CCA enables system and module-level monitoring; Connects to Tigo TS4’s via a Tigo Access Point (TAP – included); Centrally connects all components for easy installation; 60-month warranty.