AIMS Power 1000W Pure Sine (ETL)
#1 in Up to 1,000 WFull review
One of the cheapest listed 1000 W pure sine inverters, for vans, trucks and CPAP use. A plug-in unit, not for hardwiring into an RV panel.
Amazon $219$219
The AIMS Power 1000W Pure Sine (ETL) is the better 12V inverter overall, rated 3.8 to 2.5. The AIMS Power 1000W Pure Sine (ETL) leads on safety listing, idle draw and value. The AIMS Power 1000W Pure Sine (ETL) costs $148.90 less ($219 vs $367.90).
Go Power! GP-ISW1000
#25 in Up to 1,000 WFull review
For vans and small RVs that run a small microwave or coffee maker and want low idle draw.
Amazon $367.90$367.90
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 AIMS Power 1000W Pure Sine (ETL) for safety listing (ETL listed to UL 458 and CSA C22.2 No. 107.1 vs no UL 458 or UL 1741 listing stated), idle draw (0.4 A idle (about 4.8 W) with nothing plugged in vs 1.5 A idle (about 18 W) with nothing plugged in) and value ($0.22 per continuous watt vs $0.37 per continuous watt).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 1,000 W 12V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | AIMS Power 1000W Pure Sine (ETL) | Go Power! GP-ISW1000 |
|---|---|---|
| Overall rating | 3.8/5 | 2.5/5 |
| Value 30% | 79 $0.22 per continuous watt | 48 $0.37 per continuous watt |
| Idle draw 15% | 80 0.4 A idle (about 4.8 W) with nothing plugged in | 0 1.5 A idle (about 18 W) with nothing plugged in |
| Safety listing 15% | 100 ETL listed to UL 458 and CSA C22.2 No. 107.1 | 0 no UL 458 or UL 1741 listing stated |
| Warranty 15% | 25 2-year warranty | 25 2-year warranty |
| Features 15% | 12 optional remote; no app | 12 optional remote; no app |
| Efficiency 10% | 100 95% peak efficiency (maker rating) | 78 92% peak efficiency (maker rating) |
Specifications
| AIMS Power 1000W Pure Sine (ETL) | Go Power! GP-ISW1000 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 1,000 W | 1,000 W |
| Surge power | 2,000 W | 1,750 W |
| DC input range | 10 to 15 V | 10.5 to 16.5 V |
| Idle draw | 0.4 A (4.8 W) | 1.5 A (18 W) |
| Power-saving draw | - | 0.1 A |
| Peak efficiency | 95% | 92% |
| Connections | ||
| AC outlets | 2 | 2 |
| GFCI outlets | No | Yes |
| Hardwire terminal | No | No |
| USB ports | 1 | 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 | ETL listed to UL 458 and CSA C22.2 No. 107.1 | No |
| Cooling | load-controlled fan | load-controlled fan |
| Dimensions | 11.53 x 5.51 x 2.91 in | 372 x 200 x 83 mm (14.65 x 7.87 x 3.27 in) |
| Weight | 5.3 lb | 7.2 lb |
| Warranty | 2 years | 2 years |