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
2.9/5
A UL-listed 3 kW 24 V inverter for RVs and small cabins with 12 V-style panels. Pick the SPH302480A for long high-voltage strings.
- 3 kWOutput
- 24 VBattery
- 1,600 WSolar input
- 1 yearWarranty
Check price at AmazonCheck price at SunGoldPower$445
Price checked October 23, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Low-voltage input suits RV and van panels wired in parallel
- UL 1741 listed at a budget price
- Up to 100 A combined charging refills a 24 V bank fast
Cons
- Only 1,600 W of panels
- Cannot be paralleled for more power or 240 V
- Idle draw not published
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 (this one) | 3 kW | 2.9/5 | $445 |
| SunGoldPower SPH302480A | 3 kW | 3.1/5 | $459 |
| SunGoldPower SPH504880A | 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 | SPH302460A |
|---|---|
| Output | |
| Output voltage | 120 V single-phase |
| Continuous output | 3,000 W |
| Surge | 6,000 W |
| Peak efficiency | 92% |
| Transfer time | 10 ms |
| Parallel units | No |
| Solar | |
| Max PV power | 1,600 W |
| Max PV voltage (Voc) | 108 V |
| MPPT range | 30 to 90 V |
| MPPT trackers | 1 |
| PV current per tracker | 40 A |
| Battery and grid | |
| Battery voltage | 24 V |
| Battery types | Lithium, lead-acid |
| Max charge current | 100 A |
| 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 | 378 x 280 x 103 mm |
| Weight | 15 lb |
| Warranty | 1 year |
| Released | 2025-07 |
Alternatives in this output
Growatt SPF 3500TL LVM-US
#10 in 120 VFull review
For a cabin, shed or backup circuit that needs 3.5 kW of 120 V power from a 48 V battery at a low price. Add a second unit later for 240 V.
Amazon$699
MPP Solar 3048LV-MK
#12 in 120 VFull review
A small 48 V online inverter for cabins and backup circuits where zero transfer time matters more than solar headroom.
MPP Solar US store $619$619
Compare
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