| Price | $4,199 | $4,898 |
| Inverter Type | hybrid | hybrid |
| Input Data (PV) | ||
| Max PV Input Power | 21 kW | 18 kW |
| MPPT Voltage Range | 120-440 V | 140-500 V |
| Max PV Input Voltage | 600 V | 600 V |
| # of MPPTs | 3 | 3 |
| Inputs per MPPT | 2 / 2 / 1 | 2 / 1 / 1 |
| Max Usable Input Current | 26 A / 26 A / 15 A | 25 A / 15 A / 15 A |
| Max Short Circuit Input Current | 31 A / 31 A / 19 A | 31 A / 19 A / 19 A |
| AC Couple | No (only with gridboss) | Yes |
| Max AC Couple Input Power | ||
| Output Data (AC) | ||
| Nominal Output Power | 16 kW (with PV) 12 kW (battery only) | 12 kW |
| Peak Surge | 24 kW | 15.5 kW |
| Locked Rotor Amps (LRA) | 195 A | 180 A |
| Output Voltage | 120/240V | 120/240VAC |
| Grid Frequency | 50/60Hz | 50/60Hz |
| Max Output Current | 66.7 A | 50 A |
| Max Grid Passthrough (Bypass) | 90 A | 200 A |
| Battery | ||
| Battery Nominal Voltage | 48 V | 48 V |
| Battery Type | Lead-acid / Lithium | Lead-acid / Lithium |
| Max Battery Charge / Discharge | 250 A / 250 A | 250 A / 250 A |
| General Info | ||
| Idle Consumption | 65 W | 70 W |
| Parallel Support | Up to 16 units | Up to 10 units |
| Monitoring | App/Web (LCD optional) | App/Web/LCD |
| Outdoor Rating | NEMA 4X | NEMA 4X |
| Dimensions (H×W×D) | 30.4 × 22.3 × 11.2 in | 34.4 × 20.5 × 11.2 in |
| Weight | 121 lbs | 121 lbs |
| Noise Level | <50 dB @ 3 ft | 68 dB @ 3 ft |
| Warranty | 10 years | 10 years |