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 3.1. The Renogy PUH 1000W with Transfer Switch leads on features, value and efficiency. The Samlex NTX-1000-12 wins on idle draw and warranty. The Renogy PUH 1000W with Transfer Switch costs $103.34 less ($269.98 vs $373.32).
For RV and van owners who want a listed 1,000 W inverter with a remote, without paying PST prices.
Amazon $373.32Prices 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 remote included; no app), value ($0.27 per continuous watt vs $0.37 per continuous watt) and efficiency (92% peak efficiency (maker rating) vs 90.5% peak efficiency (maker rating)).
- Choose the Samlex NTX-1000-12 for 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) and warranty (2-year warranty vs 1-year warranty).
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 NTX-1000-12 |
|---|---|---|
| Overall rating | 3.5/5 | 3.1/5 |
| Value 30% | 69 $0.27 per continuous watt | 47 $0.37 per continuous watt |
| 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 | 25 2-year warranty |
| Features 15% | 95 remote included, app, transfer switch, hardwire terminal | 25 remote included; no app |
| Efficiency 10% | 78 92% peak efficiency (maker rating) | 61 90.5% peak efficiency (maker rating) |
Specifications
| Renogy PUH 1000W with Transfer Switch | Samlex NTX-1000-12 | |
|---|---|---|
| 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 1 s |
| DC input range | 11 to 15.5 V | 10.5 to 16.3 V |
| Idle draw | 1 A (12 W) | 0.8 A (9.6 W) |
| Peak efficiency | 92% | 90.5% |
| 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 | Included |
| 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 | load-controlled fan |
| Dimensions | 15.3 x 8.1 x 3.8 in | 216 x 281 x 92 mm (8.50 x 11.06 x 3.62 in) |
| Weight | 8.2 lb | 5.4 lb |
| Warranty | 1 year | 2 years |
