The SI01 is Veichi's newest compact solar pumping series, about 25% smaller than its predecessors and wall-mounted, covering 0.4 to 7.5 kW across 110 V, 220 V and 380 V classes. The 380 V class accepts 250–850 VDC of PV input as standard, and AC/DC input enables 24/7 continuous operation with grid or generator backup per voltage class.

A dual-CPU control architecture runs the full range, with an optimised single-phase motor algorithm for diverse pump types. Integrated PV-specific protections include dry-run (water shortage), low-frequency and minimum-power stop, alongside over/low-voltage, over-current, overload, phase-loss and overspeed protection.