SMA SB 3.6‑1AV‑41 3.6kW Grid‑Tie Inverter (used, well looked after, excellent condition) — A 3.6 kW single-phase grid-tie solar inverter from SMA’s Sunny Boy range, ideal for residential PV systems. It has two independent MPPT inputs for flexible panel layouts, good efficiency (around 96.5 % EU), and built-in communication and monitoring features. Compact and reliable, it’s perfect for small to medium home solar setups and has been well maintained and in great condition.