Go Power! SSW-1800-12-HW
#19 in 1,100 to 2,000 WFull review
For RVs building around Go Power’s PowerTrak system that want an efficient 1800 W inverter with very low powersave draw.
Amazon $552.93$552.93
The Go Power! SSW-1800-12-HW is the better 12V inverter overall, rated 3.4 to 3.0. The Go Power! SSW-1800-12-HW leads on idle draw, value and efficiency. The Go Power! ASW-1800-12-TS wins on features. The Go Power! SSW-1800-12-HW costs $68.34 less ($552.93 vs $621.27).
Go Power! ASW-1800-12-TS
#31 in 1,100 to 2,000 WFull review
For RVs that already have a converter or solar charging and want an inverter with a built-in transfer switch.
Amazon $621.27$621.27
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-1800-12-HW for idle draw (1 A idle (about 12 W) with nothing plugged in vs 2 A idle (about 24 W) with nothing plugged in), value ($0.31 per continuous watt vs $0.34 per continuous watt) and efficiency (93% peak efficiency (maker rating) vs 91% peak efficiency (maker rating)).
- Choose the Go Power! ASW-1800-12-TS for features (optional remote, transfer switch, hardwire terminal; no app vs optional remote, hardwire terminal; 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-1800-12-HW | Go Power! ASW-1800-12-TS |
|---|---|---|
| Overall rating | 3.4/5 | 3.0/5 |
| Value 30% | 40 $0.31 per continuous watt | 29 $0.34 per continuous watt |
| Idle draw 15% | 67 1 A idle (about 12 W) with nothing plugged in | 0 2 A idle (about 24 W) with nothing plugged in |
| Safety listing 15% | 100 UL Listed (product page); UL 458 mark on the spec sheet | 100 Certified UL 458; cULus certified |
| Warranty 15% | 25 2-year warranty | 25 2-year warranty |
| Features 15% | 28 optional remote, hardwire terminal; no app | 52 optional remote, transfer switch, hardwire terminal; no app |
| Efficiency 10% | 89 93% peak efficiency (maker rating) | 67 91% peak efficiency (maker rating) |
Specifications
| Go Power! SSW-1800-12-HW | Go Power! ASW-1800-12-TS | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 1,800 W | 1,800 W |
| Surge power | 3,600 W for 2 s | 3,600 W for 3 s |
| DC input range | 10.8 to 16 V | 10 to 16.5 V |
| Idle draw | 1 A (12 W) | 2 A (24 W) |
| Power-saving draw | 0.2 A | 0.1 A |
| Peak efficiency | 93% | 91% |
| Connections | ||
| AC outlets | 0 | 0 |
| GFCI outlets | No | No |
| Hardwire terminal | Yes | Yes |
| USB ports | None | None |
| Transfer switch | No | Yes |
| 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 | Certified UL 458; cULus certified |
| Dimensions | 419 x 228 x 104 mm (16.5 x 9.0 x 4.1 in) | 253 x 86 x 376 mm (9.96 x 3.39 x 14.80 in) |
| Weight | 16.2 lb | 9.7 lb |
| Warranty | 2 years | 2 years |