Brand New Design 38.5% Smaller & 7.4% Lighter Premium Aluminum Die-Cast Housing Dual RJ45 Ports (RS485 & Ethernet) Integrated PCB Technology 100% PV System Compatibility Up to 2500W AC Input/Output Power Annual Savings up to €1,310

4kW 4 MPPT Balcony ESS with 2.2kW AC-Coupling  Plug & Play — Installation in Just 5 Minutes 4 MPPT for Max.4000W Solar Input 2200W Bidirectional Power 2200W Backup Power, Peak at 2500W Flexible Expansion up to 6 Units & 15.36kWh EPS < 15ms