Xantrex PROwatt SW 2000
#17 in 1,100 to 2,000 WFull review
A listed plug-in inverter for RV owners who want to run a microwave without hardwiring. Its real rating is 1,800 W, so a Freedom X 2000 suits bigger loads.
Amazon $546.73$546.73
The Xantrex PROwatt SW 2000 is the better 12V inverter overall, rated 3.4 to 3.0. The Xantrex PROwatt SW 2000 leads on idle draw and value. The Go Power! ASW-1800-12-TS wins on features and efficiency. The Xantrex PROwatt SW 2000 costs $74.54 less ($546.73 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 Xantrex PROwatt SW 2000 for idle draw (0.6 A idle (about 7.2 W) with nothing plugged in vs 2 A idle (about 24 W) with nothing plugged in) and value ($0.30 per continuous watt vs $0.34 per continuous watt).
- Choose the Go Power! ASW-1800-12-TS for features (optional remote, transfer switch, hardwire terminal; no app vs optional remote, display; no app) and efficiency (91% peak efficiency (maker rating) vs 90% peak efficiency (maker rating)).
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 | Xantrex PROwatt SW 2000 | Go Power! ASW-1800-12-TS |
|---|---|---|
| Overall rating | 3.4/5 | 3.0/5 |
| Value 30% | 41 $0.30 per continuous watt | 29 $0.34 per continuous watt |
| Idle draw 15% | 93 0.6 A idle (about 7.2 W) with nothing plugged in | 0 2 A idle (about 24 W) with nothing plugged in |
| Safety listing 15% | 100 ETL listed to CSA C22.2 No. 107.1 and UL 458 with marine supplement | 100 Certified UL 458; cULus certified |
| Warranty 15% | 25 2-year warranty | 25 2-year warranty |
| Features 15% | 22 optional remote, display; no app | 52 optional remote, transfer switch, hardwire terminal; no app |
| Efficiency 10% | 56 90% peak efficiency (maker rating) | 67 91% peak efficiency (maker rating) |
Specifications
| Xantrex PROwatt SW 2000 | 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 | 3,000 W | 3,600 W for 3 s |
| DC input range | 10.5 to 15.5 V | 10 to 16.5 V |
| Idle draw | 0.6 A (7.2 W) | 2 A (24 W) |
| Power-saving draw | - | 0.1 A |
| Peak efficiency | 90% | 91% |
| Connections | ||
| AC outlets | 2 | 0 |
| GFCI outlets | Yes | No |
| Hardwire terminal | No | Yes |
| USB ports | 1 | None |
| Transfer switch | No | Yes |
| Parallel units | No | No |
| Control and build | ||
| Remote | Optional extra | Optional extra |
| App | No | No |
| Display | Yes | No |
| Safety listing | ETL listed to CSA C22.2 No. 107.1 and UL 458 with marine supplement | Certified UL 458; cULus certified |
| Cooling | load-controlled fan | - |
| Dimensions | 13.7 x 11.8 x 3.9 in (348 x 299 x 100 mm) | 253 x 86 x 376 mm (9.96 x 3.39 x 14.80 in) |
| Weight | 10.7 lb | 9.7 lb |
| Warranty | 2 years | 2 years |
| Released | 2009-10 | - |