Renogy PUH 1000W with Transfer Switch
#6 in Up to 1,000 WFull review
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 $269.98$269.98
The Renogy PUH 1000W with Transfer Switch is the better 12V inverter overall, rated 3.5 to 2.4. The Renogy PUH 1000W with Transfer Switch leads on safety listing, features and value. The Cotek SP-1000-112 wins on warranty. The Renogy PUH 1000W with Transfer Switch costs $136.02 less ($269.98 vs $406).
Cotek SP-1000-112
#26 in Up to 1,000 WFull review
For vans and small RVs that run a small microwave and want very low standby draw.
Northern Arizona Wind & Sun $406$406
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 safety listing (UL certified to UL 458 and CSA C22.2 No. 107.1-01 vs no UL 458 or UL 1741 listing stated), features (remote included, app, transfer switch, hardwire terminal vs optional remote; no app) and value ($0.27 per continuous watt vs $0.41 per continuous watt).
- Choose the Cotek SP-1000-112 for 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 | Cotek SP-1000-112 |
|---|---|---|
| Overall rating | 3.5/5 | 2.4/5 |
| Value 30% | 69 $0.27 per continuous watt | 40 $0.41 per continuous watt |
| Idle draw 15% | 0 1 A idle (about 12 W) with nothing plugged in | 0 1.5 A idle (about 18 W) with nothing plugged in |
| Safety listing 15% | 100 UL certified 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% | 95 remote included, app, transfer switch, hardwire terminal | 12 optional remote; no app |
| Efficiency 10% | 78 92% peak efficiency (maker rating) | 78 92% peak efficiency (maker rating) |
Specifications
| Renogy PUH 1000W with Transfer Switch | Cotek SP-1000-112 | |
|---|---|---|
| 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 | 1,750 W for 3 s |
| DC input range | 11 to 15.5 V | 10.5 to 16.5 V |
| Idle draw | 1 A (12 W) | 1.5 A (18 W) |
| Power-saving draw | - | 0.1 A |
| Peak efficiency | 92% | 92% |
| 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 | No |
| Cooling | fan | load-controlled fan |
| Dimensions | 15.3 x 8.1 x 3.8 in | 200 x 83 x 372 mm (W x H x D) |
| Weight | 8.2 lb | 7.2 lb |
| Warranty | 1 year | 2 years |