Samlex NTX-1500-12
#13 in 1,100 to 2,000 WFull review
For RVs and vans that want a listed inverter for a microwave or coffee maker at a fair price.
Amazon $422.50$422.50
The Samlex NTX-1500-12 is the better 12V inverter overall, rated 3.4 to 2.9. The Samlex NTX-1500-12 leads on value, efficiency and idle draw. The Samlex PST-1500-12 wins on warranty. The Samlex NTX-1500-12 costs $193.54 less ($422.50 vs $616.04).
Samlex PST-1500-12
#33 in 1,100 to 2,000 WFull review
For RVs and boats that need a listed 1,500 W inverter for a microwave or coffee maker.
Amazon $616.04$616.04
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 Samlex NTX-1500-12 for value ($0.28 per continuous watt vs $0.41 per continuous watt), efficiency (90.5% peak efficiency (maker rating) vs 85% peak efficiency (maker rating)) 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).
- Choose the Samlex PST-1500-12 for warranty (3-year warranty vs 2-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 1,100 to 2,000 W 12V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Samlex NTX-1500-12 | Samlex PST-1500-12 |
|---|---|---|
| Overall rating | 3.4/5 | 2.9/5 |
| Value 30% | 47 $0.28 per continuous watt | 11 $0.41 per continuous watt |
| Idle draw 15% | 80 0.8 A idle (about 9.6 W) with nothing plugged in | 67 1 A idle (about 12 W) with nothing plugged in |
| Safety listing 15% | 100 Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 | 100 Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Warranty 15% | 25 2-year warranty | 50 3-year warranty |
| Features 15% | 25 remote included; no app | 28 optional remote, hardwire terminal; no app |
| Efficiency 10% | 61 90.5% peak efficiency (maker rating) | 0 85% peak efficiency (maker rating) |
Specifications
| Samlex NTX-1500-12 | Samlex PST-1500-12 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 1,500 W | 1,500 W |
| Surge power | 3,000 W for 1 s | 3,000 W |
| DC input range | 10.5 to 16.3 V | 10.7 to 16.5 V |
| Idle draw | 0.8 A (9.6 W) | 1 A (12 W) |
| Peak efficiency | 90.5% | 85% |
| Connections | ||
| AC outlets | 2 | 2 |
| GFCI outlets | Yes | Yes |
| Hardwire terminal | No | Yes |
| USB ports | None | None |
| Transfer switch | No | No |
| Parallel units | No | No |
| Control and build | ||
| Remote | Included | Optional extra |
| App | No | No |
| Display | No | No |
| Safety listing | Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 | Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Cooling | load-controlled fan | fan |
| Dimensions | 216 x 333 x 92 mm | 263 x 468.2 x 105.6 mm (10.35 x 18.43 x 4.16 in) |
| Weight | 7.8 lb | 15.6 lb |
| Warranty | 2 years | 3 years |