The SUN-1/1.5/2/2.2/2.5/2.7/3/3.3/3.6/4K-G05P1-EU-CM1 is Deye's compact single-phase grid-tied string inverter family, with ten models from 1 to 4 kW for small rooftops. A single MPP tracker with a very low 50 V start-up voltage and a wide 40–500 V MPPT range (550 V max. input) captures energy early in the morning and late in the day, with PV oversizing up to 1.5 times rated power.

Maximum efficiency reaches 97.5% with >99% MPPT efficiency, and the 5.7 kg IP65 unit installs quickly on any facade. Features include zero-export and VSG applications, optional string intelligent monitoring and anti-PID function, Type II DC/AC surge protection, LCD+LED indication and RS485/RS232/Wi-Fi/LAN communication, all backed by a 5-year warranty.