MPP Solar LV6548V 500V
#5 in 120 VFull review
A low-cost 6.5 kW off-grid inverter for big solar arrays on 120 V circuits. Pair two for a 240 V home.
MPP Solar US store $1,129$1,129
3.2/5
The budget version of the SPH5048P for single-unit 120 V systems that will never need 240 V.
- 5 kWOutput
- 48 VBattery
- 5,500 WSolar input
- 1 yearWarranty
Check price at AmazonCheck price at SunGoldPower$589
Price checked October 23, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- One of the cheapest UL-listed 5 kW all-in-ones
- Takes 5,500 W of panels on 500 V strings
- Runs from solar with no battery
Cons
- Cannot be paralleled, so no path to 240 V
- Idle draw not published
- 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 (this one) | 5 kW | 3.2/5 | $589 |
| SunGoldPower SPH5048P | 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 | SPH504880A |
|---|---|
| Output | |
| Output voltage | 120 V single-phase |
| Continuous output | 5,000 W |
| Surge | 10,000 W |
| Peak efficiency | 90% |
| Transfer time | 10 ms |
| Parallel units | No |
| Solar | |
| Max PV power | 5,500 W |
| Max PV voltage (Voc) | 500 V |
| MPPT range | 120 to 450 V |
| MPPT trackers | 1 |
| Runs without battery | Yes |
| Battery and grid | |
| Battery voltage | 48 V |
| Battery types | Lithium, lead-acid |
| AC charge current | 40 A |
| Battery communication | Yes |
| Grid sell-back | No |
| Generator input | No |
| UL 1741 | Yes |
| Build | |
| App monitoring | Optional add-on |
| Dimensions | 426 x 322 x 126 mm |
| Weight | 25.4 lb |
| Warranty | 1 year |
| Released | 2025-06 |
Alternatives in this output
Renogy 3500W 48V Pure Sine Inverter
#6 in 120 VFull review
For a 120 V cabin, shed or backup circuit on a 48 V battery where a UL listing matters. The low-voltage solar input suits small arrays, not large roofs.
Amazon Renogy $599.99$599.99
ECO-WORTHY 3500W 48V AIO Inverter
#8 in 120 VFull review
For a small 120 V cabin or shed system on a 48 V battery that needs a UL-listed unit for little money. Large arrays are better served by a 500 V input.
Amazon ECO-WORTHY $499.99$499.99
Compare
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