4kW 4 MPPT Balcony ESS with 2.5kW AC-Coupling Plug & Play — Installation in Just 5 Minutes 4 MPPT for Max.4000W Solar Input 2500W Bidirectional Power 2500W Backup Power, Peak at 3000W Flexible Expansion up to 6 Units & 15.36kWh EPS < 10ms

Install in Minutes Control Multiple Units Simultaneously Integrated with household smart meters Supports Infrared/P1/TIC communication Better compatibility with Marstek Products Control power with smart App High security and strong signal strength