Go Power! SSW-1500-12
#20 in 1,100 to 2,000 WFull review
For RVs building around Go Power’s PowerTrak system that want an efficient 1500 W inverter with very low powersave draw.
Amazon $455.97$455.97
The Go Power! SSW-1500-12 is the better 12V inverter overall, rated 3.4 to 2.9. The Go Power! SSW-1500-12 leads on value, efficiency and idle draw. The Samlex PST-1500-12 wins on warranty and features. The Go Power! SSW-1500-12 costs $160.07 less ($455.97 vs $616.04).
Samlex PST-1500-12
#33 in 1,100 to 2,000 WFull review
For RVs and boats that need a listed 1,500 W inverter for a microwave or coffee maker.
Amazon $616.04$616.04
Prices were last checked October 24, 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 Go Power! SSW-1500-12 for value ($0.30 per continuous watt vs $0.41 per continuous watt), efficiency (93% peak efficiency (maker rating) vs 85% peak efficiency (maker rating)) and idle draw (0.8 A idle (about 9.6 W) with nothing plugged in vs 1 A idle (about 12 W) with nothing plugged in).
- Choose the Samlex PST-1500-12 for warranty (3-year warranty vs 2-year warranty) and features (optional remote, hardwire terminal; no app vs optional remote; no app).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 1,100 to 2,000 W 12V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Go Power! SSW-1500-12 | Samlex PST-1500-12 |
|---|---|---|
| Overall rating | 3.4/5 | 2.9/5 |
| Value 30% | 41 $0.30 per continuous watt | 11 $0.41 per continuous watt |
| Idle draw 15% | 80 0.8 A idle (about 9.6 W) with nothing plugged in | 67 1 A idle (about 12 W) with nothing plugged in |
| Safety listing 15% | 100 UL Listed (product page); UL 458 mark on the spec sheet | 100 Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Warranty 15% | 25 2-year warranty | 50 3-year warranty |
| Features 15% | 12 optional remote; no app | 28 optional remote, hardwire terminal; no app |
| Efficiency 10% | 89 93% peak efficiency (maker rating) | 0 85% peak efficiency (maker rating) |
Specifications
| Go Power! SSW-1500-12 | Samlex PST-1500-12 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 1,500 W | 1,500 W |
| Surge power | 3,000 W for 2 s | 3,000 W |
| DC input range | 10.8 to 16 V | 10.7 to 16.5 V |
| Idle draw | 0.8 A (9.6 W) | 1 A (12 W) |
| Power-saving draw | 0.2 A | - |
| Peak efficiency | 93% | 85% |
| Connections | ||
| AC outlets | - | 2 |
| GFCI outlets | Yes | Yes |
| Hardwire terminal | No | Yes |
| USB ports | None | None |
| Transfer switch | No | No |
| Parallel units | No | No |
| Control and build | ||
| Remote | Optional extra | Optional extra |
| App | No | No |
| Display | No | No |
| Safety listing | UL Listed (product page); UL 458 mark on the spec sheet | Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Cooling | - | fan |
| Dimensions | 385 x 228 x 104 mm (15.2 x 9.0 x 4.1 in) | 263 x 468.2 x 105.6 mm (10.35 x 18.43 x 4.16 in) |
| Weight | 12.9 lb | 15.6 lb |
| Warranty | 2 years | 3 years |