For a van or small RV that plugs into shore power and wants loads to stay on when it unplugs. Pair it with a separate charger.
Amazon $269.98The Renogy PUH 1000W with Transfer Switch is the better 12V inverter overall, rated 3.5 to 3.0. The Renogy PUH 1000W with Transfer Switch leads on features and efficiency. The Samlex PST-1000F-12 wins on warranty and idle draw.
For an RV or boat that wants a listed 1,000 W inverter with GFCI outlets. The newer PST-1000-12HD adds a hardwire terminal.
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 Renogy PUH 1000W with Transfer Switch for features (remote included, app, transfer switch, hardwire terminal vs optional remote; no app) and efficiency (92% peak efficiency (maker rating) vs 85% peak efficiency (maker rating)).
- Choose the Samlex PST-1000F-12 for warranty (3-year warranty vs 1-year warranty) and idle draw (0.8 A idle (about 9.6 W) with nothing plugged in vs 1 A idle (about 12 W) with nothing plugged in).
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 PUH 1000W with Transfer Switch | Samlex PST-1000F-12 |
|---|---|---|
| Overall rating | 3.5/5 | 3.0/5 |
| Value 30% | 69 $0.27 per continuous watt | 50 no current price (neutral score used) |
| Idle draw 15% | 0 1 A idle (about 12 W) with nothing plugged in | 27 0.8 A idle (about 9.6 W) with nothing plugged in |
| Safety listing 15% | 100 UL certified to UL 458 and CSA C22.2 No. 107.1-01 | 100 Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Warranty 15% | 0 1-year warranty | 50 3-year warranty |
| Features 15% | 95 remote included, app, transfer switch, hardwire terminal | 12 optional remote; no app |
| Efficiency 10% | 78 92% peak efficiency (maker rating) | 0 85% peak efficiency (maker rating) |
Specifications
| Renogy PUH 1000W with Transfer Switch | Samlex PST-1000F-12 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 1,000 W | 1,000 W |
| Surge power | 2,000 W for 2 s | 2,000 W for 8 ms |
| DC input range | 11 to 15.5 V | 10.7 to 16.5 V |
| Idle draw | 1 A (12 W) | 0.8 A (9.6 W) |
| Peak efficiency | 92% | 85% |
| Connections | ||
| AC outlets | 2 | 2 |
| GFCI outlets | Yes | Yes |
| Hardwire terminal | Yes | No |
| USB ports | 1 | None |
| Transfer switch | Yes | No |
| Parallel units | No | No |
| Control and build | ||
| Remote | Included | Optional extra |
| App | Built in | No |
| Display | - | No |
| Safety listing | UL certified to UL 458 and CSA C22.2 No. 107.1-01 | Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Cooling | fan | fan |
| Dimensions | 15.3 x 8.1 x 3.8 in | 238 x 397 x 82 mm |
| Weight | 8.2 lb | 8.8 lb |
| Warranty | 1 year | 3 years |
