1. Inbuilt solar MPPT/PWM(DGP-202p) charger 2. Multiple operation modes for ongrid, offgrid, and backup applications 3. Adjustable charging current 4. Dual voltage model options 5. Pure sine wave output 6. Multiple communication interfaces available 7. Parallel connectivity up to 6 inverters for DGP-502h only 8. Dual grid input voltage ranges for different models 9. Common battery bank for paralleled inverters