A 1000 W inverter for vans and campers that leave the inverter on all day, thanks to its low idle draw and app.
Amazon $222.99The Renogy Pro 1000W Pure Sine rates 3.8 among up to 1,000 W 12V inverters; the Magnum Energy MMS1012 rates 3.1 among inverter-chargers ones. The Renogy Pro 1000W Pure Sine costs $969.01 less ($222.99 vs $1,192).

For smaller RVs and trucks that want a rugged, listed 1,000 W inverter-charger and don’t mind paying for it.
Amazon $1,192Prices 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.
Scores side by side
These two sit in different size classes (up to 1,000 W and inverter-chargers), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Renogy Pro 1000W Pure Sine | Magnum Energy MMS1012 |
|---|---|---|
| Overall rating | 3.8/5 | 3.1/5 |
| Value 30% | 79 $0.22 per continuous watt | 0 $1.19 per continuous watt |
| Idle draw 15% | 27 0.8 A idle (about 9.6 W) with nothing plugged in | 70 1.6 A idle (about 19 W) with nothing plugged in |
| Safety listing 15% | 100 UL 458, CSA C22.2 No. 107.1-01 (certification marks: UL, CSA) | 100 ETL listed to UL 458 & UL 1741, CSA C22.2 #107.1; meets KKK-A-1822E |
| Warranty 15% | 25 2-year warranty | 50 3-year warranty |
| Features 15% | 70 remote included, app, hardwire terminal | 65 optional remote, app add-on, lithium charge profile, hardwire terminal |
| Efficiency 10% | 78 92% peak efficiency (maker rating) | 22 87% peak efficiency (maker rating) |
Specifications
| Renogy Pro 1000W Pure Sine | Magnum Energy MMS1012 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter-charger |
| Continuous power | 1,000 W | 1,000 W |
| Surge power | 2,000 W for 150 ms | 1,750 W for 5 s |
| DC input range | - | 9 to 17 V |
| Idle draw | 0.8 A (9.6 W) | 1.6 A (19 W) |
| Power-saving draw | - | 0.4 A |
| Peak efficiency | 92% | 87% |
| Connections | ||
| AC outlets | 2 | 0 |
| GFCI outlets | No | No |
| Hardwire terminal | Yes | Yes |
| USB ports | 1 | None |
| Transfer switch | No | Yes |
| Charger | - | 50 A |
| Lithium charge profile | - | Yes |
| Parallel units | No | No |
| Control and build | ||
| Remote | Included | Optional extra |
| App | Built in | Optional add-on |
| Display | - | No |
| Safety listing | UL 458, CSA C22.2 No. 107.1-01 (certification marks: UL, CSA) | ETL listed to UL 458 & UL 1741, CSA C22.2 #107.1; meets KKK-A-1822E |
| Cooling | fan | fan |
| Dimensions | 13.46 x 8.29 x 3.8 in | 16.6 x 8.4 x 4.7 in (42 x 21 x 12 cm) |
| Weight | 6.7 lb | 23 lb |
| Warranty | 2 years | 3 years |