The SUN-3/3.6/5/6K-SG04LP1-EU is Deye's flagship single-phase low-voltage hybrid inverter for homes, covering 3 to 6 kW of rated AC power. It works with 48 V lead-acid or lithium batteries (40–60 V range, plus a dedicated 24 V 3 kW model) with up to 140 A of charging/discharging current, accepts up to 500 V PV input across an MPPT window of 150–425 V, and switches seamlessly between grid-tied, off-grid and backup operation.

With 97.6% maximum efficiency, a colourful IP65 touch LCD and self-adapting BMS communication for lithium batteries, it is built for flexible energy management: six programmable charge/discharge time windows, AC coupling to retrofit an existing solar system, generator input support and parallel operation of up to 16 units on- and off-grid. Protection includes AFCI (optional), anti-islanding, Type II DC/AC surge protection and residual current detection, backed by a 5 or 10 year warranty depending on the installation region.