ECO-WORTHY Liber 6kP
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 $789.99$789.99
The ECO-WORTHY Liber 6kP is the better hybrid solar inverter overall, rated 3.7 to 3.6. The ECO-WORTHY Liber 6kP leads on features and warranty. The PowMr POW-LVM6K-SP costs $240.99 less ($549 vs $789.99).
PowMr POW-LVM6K-SP
For budget off-grid builds that need 240 V from a single box. The high idle draw and short warranty are the price of the low cost.
PowMr $549$549
Prices 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.
Which should you buy?
- Choose the ECO-WORTHY Liber 6kP for features (UL 1741 listed, Wi-Fi app, parallel stacking, battery communication; no grid sell-back vs Wi-Fi app, battery communication; not UL 1741 listed) and warranty (2-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 120/240 V split-phase hybrid solar inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | ECO-WORTHY Liber 6kP | PowMr POW-LVM6K-SP |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Value 30% | 100 $132 per kW of continuous output | 100 $92 per kW of continuous output |
| Solar input 20% | 60 9,000 W of panels, 500 V max, 1 MPPT | 68 9,000 W of panels, 500 V max, 2 MPPTs |
| Efficiency 20% | 45 93% peak efficiency | 61 94% peak efficiency, 75 W idle |
| Features 15% | 75 UL 1741 listed, Wi-Fi app, parallel stacking, battery communication; no grid sell-back | 35 Wi-Fi app, battery communication; not UL 1741 listed |
| Warranty 15% | 11 2-year warranty | 0 1-year warranty |
Specifications
| ECO-WORTHY Liber 6kP | PowMr POW-LVM6K-SP | |
|---|---|---|
| Output | ||
| Output voltage | 120/240 V split-phase | 120/240 V split-phase |
| Continuous output | 6,000 W | 6,000 W |
| Surge | 12,000 W | 12,000 W |
| Peak efficiency | 93% | 94% |
| Idle draw | - | 75 W |
| Transfer time | 10 ms | 10 ms |
| Parallel units | Up to 6 units | No |
| Solar | ||
| Max PV power | 9,000 W | 9,000 W |
| Max PV voltage (Voc) | 500 V | 500 V |
| MPPT range | 125 to 425 V | 80 to 450 V |
| MPPT trackers | 1 | 2 |
| PV current per tracker | 27 A | 18 A |
| Runs without battery | - | Yes |
| Battery and grid | ||
| Battery voltage | 48 V | 48 V |
| Battery types | Lithium-ion, lead-acid, user-defined | Lithium, lead-acid, user-defined |
| Max charge current | 120 A | 125 A |
| AC charge current | 100 A | 100 A |
| Battery communication | Yes | Yes |
| Grid sell-back | No | No |
| Generator input | No | - |
| UL 1741 | Yes | No |
| Build | ||
| App monitoring | Included | Included |
| Enclosure | IP20 | - |
| Dimensions | 472 x 412 x 130 mm | - |
| Weight | 35.3 lb | - |
| Warranty | 2 years | 1 year |
| Released | 2026-02 | - |