The Renogy PUH 3000W with Transfer Switch is the better 12V inverter overall, rated 4.0 to 3.7. The Renogy PUH 3000W with Transfer Switch leads on features, efficiency and idle draw. The Rich Solar NOVA PURE 3K 12V costs $61.98 less ($399.99 vs $461.97).
A big inverter with automatic changeover for RVs and home backup that already have a separate charger. Renogy’s HF inverter-chargers add charging for more money.
Amazon $461.97A safety-listed 3000 W inverter at a budget price, for RVs and cabins with a large 12 V battery bank.
Rich Solar $399.99Prices 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.
Each factor is scored 0-100 against the same fixed reference points for every over 2,000 W 12V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Renogy PUH 3000W with Transfer Switch | Rich Solar NOVA PURE 3K 12V |
|---|---|---|
| Overall rating | 4.0/5 | 3.7/5 |
| Value 30% | 77 $0.15 per continuous watt | 83 $0.13 per continuous watt |
| Idle draw 15% | 67 1.5 A idle (about 18 W) with nothing plugged in | 44 2 A idle (about 24 W) with nothing plugged in |
| Safety listing 15% | 100 UL certified to UL 458 and CSA C22.2 No. 107.1-01 | 100 ETL listed (Intertek) to UL 458 and CSA C22.2 No. 107.1 |
| Warranty 15% | 0 1-year warranty | 50 warranty not published (neutral score used) |
| Features 15% | 95 remote included, app, transfer switch, hardwire terminal | 40 remote included, hardwire terminal; no app |
| Efficiency 10% | 78 92% peak efficiency (maker rating) | 33 88% peak efficiency (maker rating) |
| Renogy PUH 3000W with Transfer Switch | Rich Solar NOVA PURE 3K 12V | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 3,000 W | 3,000 W |
| Surge power | 6,000 W for 2 s | 6,000 W |
| DC input range | 11 to 15.5 V | 10 to 16.5 V |
| Idle draw | 1.5 A (18 W) | 2 A (24 W) |
| Peak efficiency | 92% | 88% |
| Connections | ||
| AC outlets | 3 | 3 |
| GFCI outlets | Yes | Yes |
| Hardwire terminal | Yes | Yes |
| USB ports | 1 | 1 |
| 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 | ETL listed (Intertek) to UL 458 and CSA C22.2 No. 107.1 |
| Cooling | fan | load-controlled fan |
| Dimensions | 19.2 x 10.4 x 3.8 in | 18.7 x 9.6 x 4.0 in |
| Weight | 14.8 lb | 12.1 lb |
| Warranty | 1 year | - |
