Samlex PST-1000F-12
#18 in Up to 1,000 WFull review
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.
2.9/5
A small, listed inverter for CPAPs, laptops and TVs in a trailer or van. You pay a premium for the listing and Xantrex support.
- 540 WContinuous
- 1,200 WSurge
- 0.6 AIdle draw
- YesUL listed
- 2 yearsWarranty
Check price at Amazon$275.43
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Plug-in GFCI outlets and a USB port, nothing to wire on the AC side
- Draws under 0.6 A idle, fine for running a CPAP overnight
- ETL listed to UL 458, unusual at this size
- Display shows battery voltage and output watts
Cons
- Only 540 W continuous despite the 600 name
- Costs about twice as much as unlisted 600 W inverters
- Full output only up to 104 °F
The Xantrex PROwatt SW family
Every Xantrex PROwatt SW model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| Xantrex PROwatt SW 600 (this one) | 540 W | 2.9/5 | $275.43 |
| Xantrex PROwatt SW 1000 | 900 W | 3.2/5 | $349 |
| Xantrex PROwatt SW 2000 | 1,800 W | 3.4/5 | $546.73 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | 806-1206 |
|---|---|
| Output | |
| Type | Pure sine wave inverter |
| Continuous power | 540 W |
| Surge power | 1,200 W |
| DC input range | 10.5 to 15.5 V |
| Idle draw | 0.6 A (7.2 W) |
| Peak efficiency | 90% |
| Connections | |
| AC outlets | 2 |
| GFCI outlets | Yes |
| Hardwire terminal | No |
| USB ports | 1 |
| Transfer switch | No |
| Parallel units | No |
| Control and build | |
| Remote | Optional extra |
| App | No |
| Display | Yes |
| Safety listing | ETL listed to CSA C22.2 No. 107.1 and UL 458 with marine supplement |
| Cooling | load-controlled fan |
| Dimensions | 12.2 x 8.7 x 3.5 in (310 x 220 x 89 mm) |
| Weight | 6.5 lb |
| Warranty | 2 years |
| Released | 2009-10 |
Alternatives in this size
Samlex NTX-600-12
#19 in Up to 1,000 WFull review
For small RVs and vans that want a listed 600 W inverter for electronics and a small fridge.
Samlex PST-600-12
#21 in Up to 1,000 WFull review
For boats and RVs that need a listed 600 W inverter with GFCI outlets for electronics and a small fridge.
Amazon $315.83$315.83
Compare
Compare the Xantrex PROwatt SW 600 with any other 12V inverter →
More from Xantrex: every Xantrex product ranked.