SunGoldPower SPH302480A
#9 in 120 VFull review
A cheap 24 V inverter for cabins and RVs that can take long high-voltage panel strings. It cannot grow past 3 kW.
Amazon SunGoldPower $459$459
The SunGoldPower SPH302480A is the better hybrid solar inverter overall, rated 3.1 to 2.7. The SunGoldPower SPH302480A leads on value and solar input. The Rich Solar NOVA MAX 3K wins on features and warranty. The SunGoldPower SPH302480A costs $340.99 less ($459 vs $799.99).
Rich Solar NOVA MAX 3K
#15 in 120 VFull review
For RV and van owners on a 24 V battery who want a US-supported all-in-one. Cheaper 24 V units take more solar for less money.
Amazon Rich Solar $799.99$799.99
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 SunGoldPower SPH302480A for value ($153 per kW of continuous output vs $267 per kW of continuous output) and solar input (4,000 W of panels, 450 V max, 1 MPPT vs 3,000 W of panels, 250 V max, 1 MPPT).
- Choose the Rich Solar NOVA MAX 3K for features (Wi-Fi app, parallel stacking, battery communication; not UL 1741 listed vs Wi-Fi add-on, battery communication; not UL 1741 listed) and warranty (3-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 V hybrid solar inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | SunGoldPower SPH302480A | Rich Solar NOVA MAX 3K |
|---|---|---|
| Overall rating | 3.1/5 | 2.7/5 |
| Value 30% | 82 $153 per kW of continuous output | 44 $267 per kW of continuous output |
| Solar input 20% | 48 4,000 W of panels, 450 V max, 1 MPPT | 17 3,000 W of panels, 250 V max, 1 MPPT |
| Efficiency 20% | 38 92% peak efficiency, 50 W idle | 32 91% peak efficiency |
| Features 15% | 20 Wi-Fi add-on, battery communication; not UL 1741 listed | 50 Wi-Fi app, parallel stacking, battery communication; not UL 1741 listed |
| Warranty 15% | 0 1-year warranty | 22 3-year warranty |
Specifications
| SunGoldPower SPH302480A | Rich Solar NOVA MAX 3K | |
|---|---|---|
| Output | ||
| Output voltage | 120 V single-phase | 120 V single-phase |
| Continuous output | 3,000 W | 3,000 W |
| Surge | 6,000 W | 6,000 W |
| Peak efficiency | 92% | 91% |
| Idle draw | 50 W | - |
| Transfer time | 10 ms | 10 ms |
| Parallel units | No | Up to 9 units |
| Solar | ||
| Max PV power | 4,000 W | 3,000 W |
| Max PV voltage (Voc) | 450 V | 250 V |
| MPPT range | 120 to 400 V | 90 to 230 V |
| MPPT trackers | 1 | 1 |
| PV current per tracker | - | 22 A |
| Runs without battery | Yes | - |
| Battery and grid | ||
| Battery voltage | 24 V | 24 V |
| Battery types | Lithium, lead-acid | Lithium, AGM, gel, flooded |
| Max charge current | 80 A | 80 A |
| AC charge current | 40 A | 80 A |
| Battery communication | Yes | Yes |
| Grid sell-back | No | No |
| Generator input | No | - |
| UL 1741 | No | No |
| Build | ||
| App monitoring | Optional add-on | Included |
| Dimensions | 378 x 280 x 103 mm | 5.6 x 12.1 x 18.8 in |
| Weight | 16.8 lb | 26.5 lb |
| Warranty | 1 year | 3 years |
| Released | 2021-11 | - |