Sun-AP Ecopower‘s Single Phase product category features solar inverters and kits built for standard residential connections, spanning two brands — Feston and Enphase. The Feston lineup includes four single-phase inverters: a 3kW on-grid model with a low 80V start-up voltage for early power generation, a 5kW on-grid model with dual PV strings per tracker for flexible panel layouts, and two hybrid variants — a 3kW and a 5kW hybrid — both combining solar generation with lithium-ion battery storage and a 10ms backup switchover; all four carry 97.5–98% efficiency ratings and a 10-year warranty.
The Enphase side offers 3kW single-phase microinverter-based solar kits built around the IQ8P-72-INT microinverter, bundled with an IQ Gateway (Envoy S) with 2 CTs, IQ Relay-3P-IN, Q term, and IQ portrait cables — available in 5- and 6-microinverter configurations depending on exact panel count, delivering roughly 97.34% module-level efficiency with a 15-year warranty. Together, the category gives customers a choice between traditional Feston string inverters (on-grid or hybrid, with battery backup options) and Enphase’s distributed microinverter architecture, all engineered for single-phase home wiring — the standard supply type across most Indian residences.