PowMr POW-LVM4K-ECO
#1 in 120 VFull review
For a small 120 V cabin, shed or van system on a 24 V battery at the lowest price. Buyers who want published efficiency and a UL listing should spend more.
Amazon PowMr $289$289
3.3/5
A cheap, UL-listed 5 kW 120 V building block for cabins and backup systems. Add a second unit for 240 V.
- 5 kWOutput
- 48 VBattery
- 5,500 WSolar input
- 50 WIdle draw
- 1 yearWarranty
Check price at AmazonCheck price at SunGoldPower$750
Price checked October 23, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- UL 1741 listed 5 kW unit at a low price
- Stacks up to six units, with two or more giving 240 V
- Takes 5,500 W of panels on 500 V strings
- Runs from solar with no battery
Cons
- About 50 W idle draw
- One unit gives 120 V only
- One-year warranty
The SunGoldPower SPH 120V family
Every SunGoldPower SPH 120V model we rank, smallest first. Ratings compare each against its own output.
| Model | Output | Rating | Price |
|---|---|---|---|
| SunGoldPower SPH302460A | 3 kW | 2.9/5 | $445 |
| SunGoldPower SPH302480A | 3 kW | 3.1/5 | $459 |
| SunGoldPower SPH504880A | 5 kW | 3.2/5 | $589 |
| SunGoldPower SPH5048P (this one) | 5 kW | 3.3/5 | $750 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its output. How we rank explains each one.
Specifications
| Model number | SPH5048P |
|---|---|
| Output | |
| Output voltage | 120 V single-phase |
| Continuous output | 5,000 W |
| Surge | 10,000 W |
| Peak efficiency | 92% |
| Idle draw | 50 W |
| Transfer time | 10 ms |
| Parallel units | Up to 6 units |
| Solar | |
| Max PV power | 5,500 W |
| Max PV voltage (Voc) | 500 V |
| MPPT range | 120 to 450 V |
| MPPT trackers | 1 |
| PV current per tracker | 22 A |
| Runs without battery | Yes |
| Battery and grid | |
| Battery voltage | 48 V |
| Battery types | Lithium, lead-acid |
| Max charge current | 100 A |
| AC charge current | 40 A |
| Battery communication | Yes |
| Grid sell-back | Yes |
| Generator input | No |
| UL 1741 | Yes |
| Build | |
| App monitoring | Optional add-on |
| Dimensions | 446.9 x 350 x 133 mm |
| Weight | 28.7 lb |
| Warranty | 1 year |
| Released | 2022-05 |
Alternatives in this output
ECO-WORTHY 5000W 48V AIO Inverter
#2 in 120 VFull review
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 $759.99$759.99
Rich Solar NOVA 6K
#4 in 120 VFull review
For a 120 V off-grid cabin or RV-style system that needs a UL-listed unit with a US support line. Similar hardware sells for much less under other brands.
Rich Solar $1,299.99$1,299.99
Compare
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