Go Power! SSW-3000-12-HW
#9 in Over 2,000 WFull review
For RVs building around Go Power’s PowerTrak system that want an efficient 3000 W inverter with very low powersave draw.
Amazon $759.16$759.16
The Go Power! SSW-3000-12-HW is the better 12V inverter overall, rated 3.4 to 2.0. The Go Power! SSW-3000-12-HW leads on safety listing, value and idle draw. The Go Power! SSW-3000-12-HW costs $369.79 less ($759.16 vs $1,128.95).
Go Power! GP-ISW3000
#23 in Over 2,000 WFull review
For RVs that hardwire a 3,000 W inverter into a subpanel. Same hardware as the Cotek SP-3000-112.
Amazon $1,128.95$1,128.95
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-3000-12-HW for safety listing (UL Listed (product page); UL 458 mark on the spec sheet vs no UL 458 or UL 1741 listing stated), value ($0.25 per continuous watt vs $0.38 per continuous watt) and idle draw (1.6 A idle (about 19.2 W) with nothing plugged in vs 3.8 A idle (about 45.6 W) with nothing plugged in).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every over 2,000 W 12V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Go Power! SSW-3000-12-HW | Go Power! GP-ISW3000 |
|---|---|---|
| Overall rating | 3.4/5 | 2.0/5 |
| Value 30% | 46 $0.25 per continuous watt | 8 $0.38 per continuous watt |
| Idle draw 15% | 62 1.6 A idle (about 19.2 W) with nothing plugged in | 0 3.8 A idle (about 45.6 W) with nothing plugged in |
| Safety listing 15% | 100 UL Listed (product page); UL 458 mark on the spec sheet | 0 no UL 458 or UL 1741 listing stated |
| Warranty 15% | 25 2-year warranty | 25 2-year warranty |
| Features 15% | 28 optional remote, hardwire terminal; no app | 28 optional remote, hardwire terminal; no app |
| Efficiency 10% | 89 93% peak efficiency (maker rating) | 56 90% peak efficiency (maker rating) |
Specifications
| Go Power! SSW-3000-12-HW | Go Power! GP-ISW3000 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 3,000 W | 3,000 W |
| Surge power | 6,000 W for 2 s | 6,000 W |
| DC input range | 10.8 to 16 V | 10.5 to 16.5 V |
| Idle draw | 1.6 A (19.2 W) | 3.8 A (45.6 W) |
| Power-saving draw | 0.2 A | 0.4 A |
| Peak efficiency | 93% | 90% |
| Connections | ||
| AC outlets | 0 | 0 |
| GFCI outlets | No | No |
| Hardwire terminal | Yes | 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 | No |
| Cooling | - | load-controlled fan |
| Dimensions | 478.5 x 269 x 130 mm (18.8 x 10.6 x 5.1 in) | 442 x 255 x 158 mm (17.40 x 10.04 x 6.22 in) |
| Weight | 23.9 lb | 18.1 lb |
| Warranty | 2 years | 2 years |