1. HD Plus Series AC/Solar charging Off grid Hybrid Inverter. 2. Built-in enhanced AC charger. 3. Built-in solar charger controller up to 40A. 4. Selectable Input voltage ranges/AC charging current/ AC or solar charger priority. 5.Intelligent 3-stage charger control for efficient charging and preventing overcharger. 6. Auto restart upon AC recovery. 7. LCD+LED display. 8. Multiple protections: low battery alarm, low battery shutdown, over charger protection, overload protection, over temperature protection, short circuit protection.