| Published power range | 1.1–4 kW |
| Scored benchmark | 4 kW |
| Rated AC power | 4 kW |
| Peak efficiency | 97.7% |
| Weighted efficiency | 97.2% |
| Number of MPPTs | 1 |
| Max input current / MPPT | 15 A |
| Ingress protection | IP65 |
| Warranty period | 8 yr |
| Grid & safety certification | IEC 62109 + national grid codes certified for 2 markets |
| Manufacturing track record | 10-15 years |
Some values are estimated where independent verification was not available: see the full scorecard and review.solar/terms.
1-4KTL2-G3 · every criterion scored by the live rubric (Solar Analytica inverter rubric v3.7.0), with its recorded value, evidence status, and any linked source. Page 1 carries the buying-decision summary; this page is the full record for verification and right of reply.
| Efficiency | |||
| Peak efficiency (%) | 97.7 | datasheet | Source +1 |
| Weighted efficiency (CEC/Euro %) | 97.2 | datasheet | Source |
| Semiconductor technology | Not disclosed | reviewed absence | Source +1 |
| Night standby consumption (W) | 1 | datasheet | Source |
| Design & Flexibility | |||
| Number of MPPTs | 1 | datasheet | Source |
| Max DC:AC oversizing ratio | 1.4 | datasheet | Source +1 |
| Max input current per MPPT (A) | 15 | datasheet | Source +1 |
| Thermal & Physical Resilience | |||
| Thermal management | Fanless / natural convection | datasheet | Source |
| Ingress protection | IP65 | datasheet | Source +1 |
| Operating temperature range | Standard | datasheet | Source |
| Surge protection | Type III DC + AC SPD | datasheet | Source |
| Features & Integration | |||
| Hybrid / battery capability | String only | datasheet | Source |
| Backup / islanding | No backup | datasheet | Source |
| Monitoring & smart features | App + smart features | datasheet | Source +1 |
| Safety & Compliance | |||
| Grid & safety certification | IEC 62109 + grid codes, 2 markets | datasheet | Source |
| Shutdown / arc safety | String | datasheet | Source |
| Guarantee & Backbone | |||
| Warranty period (yrs) | 8 | datasheet | Source |
| Warranty assurance | Parts & labour | datasheet | Source |
| Manufacturing track record | 10-15 years | datasheet | Source +1 |
| Energy Ecosystem | |||
| Open protocol & API maturity | Proprietary / no documented API | reviewed absence | Source +1 |
| VPP & grid services readiness | No VPP capability | reviewed absence | Source +2 |
| EV charging integration | No EV integration | reviewed absence | Source +1 |
| Thermal load management | No thermal load integration | reviewed absence | Source +1 |
| Smart home & IoT depth | No local smart home integration | reviewed absence | Source +1 |
| Firmware & security disclosure | Firmware updates referenced; no security documentation | reviewed absence | Source |
review.solar · audit sheet · Solar Analytica inverter rubric v3.7.0 · https://review.solar/cards/sofar-4ktl2-g3-in