For off-grid cabins and small homes that need 240 V loads on a budget. One unit covers a modest house and more can be added later.
Amazon ECO-WORTHY $789.99The ECO-WORTHY Liber 6kP rates 3.7 among 120/240 V split-phase hybrid solar inverters; the ECO-WORTHY 5000W 48V AIO Inverter rates 3.4 among 120 V ones. The ECO-WORTHY 5000W 48V AIO Inverter costs $30 less ($759.99 vs $789.99).

For a 120 V cabin or backup circuit with a decent array and long panel strings. Buyers who need 240 V should look at a split-phase unit instead of buying two.
Amazon ECO-WORTHY $759.99Prices were last checked October 23, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different output classes (120/240 V split-phase and 120 V), and each is scored against the reference points for its own class, so a rating says how well each does among its own output peers. How we rank explains each factor.
| Factor weight | ECO-WORTHY Liber 6kP | ECO-WORTHY 5000W 48V AIO Inverter |
|---|---|---|
| Overall rating | 3.7/5 | 3.4/5 |
| Value 30% | 100 $132 per kW of continuous output | 83 $152 per kW of continuous output |
| Solar input 20% | 60 9,000 W of panels, 500 V max, 1 MPPT | 48 5,500 W of panels, 500 V max, 2 MPPTs |
| Efficiency 20% | 45 93% peak efficiency | 38 92% peak efficiency |
| Features 15% | 75 UL 1741 listed, Wi-Fi app, parallel stacking, battery communication; no grid sell-back | 65 UL 1741 listed, Wi-Fi add-on, parallel stacking; no grid sell-back |
| Warranty 15% | 11 2-year warranty | 11 2-year warranty |
Specifications
| ECO-WORTHY Liber 6kP | ECO-WORTHY 5000W 48V AIO Inverter | |
|---|---|---|
| Output | ||
| Output voltage | 120/240 V split-phase | 120 V single-phase |
| Continuous output | 6,000 W | 5,000 W |
| Surge | 12,000 W | 10,000 W |
| Peak efficiency | 93% | 92% |
| Transfer time | 10 ms | - |
| Parallel units | Up to 6 units | Up to 6 units |
| Solar | ||
| Max PV power | 9,000 W | 5,500 W |
| Max PV voltage (Voc) | 500 V | 500 V |
| MPPT range | 125 to 425 V | 120 to 450 V |
| MPPT trackers | 1 | 2 |
| PV current per tracker | 27 A | 22 A |
| Runs without battery | - | Yes |
| Battery and grid | ||
| Battery voltage | 48 V | 48 V |
| Battery types | Lithium-ion, lead-acid, user-defined | - |
| Max charge current | 120 A | 100 A |
| AC charge current | 100 A | 40 A |
| Battery communication | Yes | - |
| Grid sell-back | No | No |
| Generator input | No | - |
| UL 1741 | Yes | Yes |
| Build | ||
| App monitoring | Included | Optional add-on |
| Enclosure | IP20 | - |
| Dimensions | 472 x 412 x 130 mm | 446.9 x 350 x 133 mm |
| Weight | 35.3 lb | 30.9 lb |
| Warranty | 2 years | 2 years |
| Released | 2026-02 | 2025-04 |