| Model | GTB-400 | |
| Maximum input power | 400Watt | |
| Peak power tracking voltage | 22-50V | |
| Min / max starting voltage | 22-55V | |
| Maximum DC short-circuit | 20A | |
| Maximum input operating current | 13A | |
| Output Data | @120V | @230V |
| Peak power output | 400Watt | |
| Rated output power | 400Watt | |
| Rated output current | 3.3A | 1.7A |
| Rated voltage range | 80-160VAC | 180-260VAC |
| Rated frequency range | 48-51/58-61Hz | |
| Power Factor | >99% | |
| Max unit per branch circuit | 6pcs(Single-phase) | 12pcs(Single-phase) |
| Output Eifficiency | @120V | @230V |
| Static MPPT efficiency | 99.5% | |
| Maximum output efficiency | 95% | |
| Night time power consumption | <1W | |
| THD | <5% | |
| Exterior & Feature | ||
| Ambient temperature range | -40°C to +60°C | |
| Dimensions (L × W × H) | 253mm×200mm×40mm | |
| Weight | 1.5kg | |
| Waterproof rating | IP65 | |
| Cooling | Self-cooling | |
| Communication Mode | WiFi mode | |
| Power transmission mode | Reverse transfer,load priority | |
| Monitoring System | Mobile APP, PC browser | |
| Electromagnetic Compatibility | EN50081.part1 EN50082.Party1 | |
| Grid disturbance | EN61000-3-2 Safety EN62109 | |
| Grid detection | DIN VDE 0126 | |
| Certificate | CE ,BIS | |