A small, well-protected inverter for laptops, TVs, CPAP machines and chargers in a van, truck or boat. Pick a bigger size if you want to run kitchen appliances.
Amazon $139.99The Renogy P2 700W Pure Sine is the better 12V inverter overall, rated 3.4 to 2.1. The Renogy P2 700W Pure Sine leads on value, safety listing and features. The Cotek SP-700-112 wins on warranty and efficiency. The Renogy P2 700W Pure Sine costs $214.01 less ($139.99 vs $354).
For campers who want a small, efficient inverter for electronics and a fridge.
Amazon $354Prices 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 Renogy P2 700W Pure Sine for value ($0.20 per continuous watt vs $0.51 per continuous watt), safety listing (ETL listed to UL 458 and CSA C22.2 No. 107.1-01 vs no UL 458 or UL 1741 listing stated) and features (remote included, hardwire terminal; no app vs optional remote; no app).
- Choose the Cotek SP-700-112 for warranty (2-year warranty vs 1-year warranty) 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 up to 1,000 W 12V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Renogy P2 700W Pure Sine | Cotek SP-700-112 |
|---|---|---|
| Overall rating | 3.4/5 | 2.1/5 |
| Value 30% | 83 $0.20 per continuous watt | 20 $0.51 per continuous watt |
| Idle draw 15% | 27 0.8 A idle (about 9.6 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. 107.1-01 | 0 no UL 458 or UL 1741 listing stated |
| Warranty 15% | 0 1-year warranty | 25 2-year warranty |
| Features 15% | 40 remote included, hardwire terminal; no app | 12 optional remote; no app |
| Efficiency 10% | 56 90% peak efficiency (maker rating) | 67 91% peak efficiency (maker rating) |
Specifications
| Renogy P2 700W Pure Sine | Cotek SP-700-112 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 700 W | 700 W |
| Surge power | 1,400 W | 1,230 W for 3 s |
| DC input range | 10.5 to 16.5 V | 10.5 to 16.5 V |
| Idle draw | 0.8 A (9.6 W) | 1.5 A (18 W) |
| Power-saving draw | - | 0.1 A |
| Peak efficiency | 90% | 91% |
| Connections | ||
| AC outlets | 2 | 2 |
| GFCI outlets | Yes | Yes |
| Hardwire terminal | Yes | No |
| USB ports | 1 | None |
| Transfer switch | No | No |
| Parallel units | No | No |
| Control and build | ||
| Remote | Included | Optional extra |
| App | No | No |
| Display | No | No |
| Safety listing | ETL listed to UL 458 and CSA C22.2 No. 107.1-01 | No |
| Cooling | fan | load-controlled fan |
| Dimensions | 12.2 x 7.4 x 3.3 in | 200 x 83 x 330 mm (W x H x D) |
| Weight | 5.3 lb | 5.7 lb |
| Warranty | 1 year | 2 years |
