The Giandel PS-1200JCR 1200W Pure Sine is the better 12V inverter overall, rated 3.3 to 3.1. The Giandel PS-1200JCR 1200W Pure Sine leads on value and idle draw. The Go Power! ASW-1200-12-TS wins on safety listing, features and warranty. The Giandel PS-1200JCR 1200W Pure Sine costs $229.92 less ($168.82 vs $398.74).
A small, low-draw inverter for laptops, Starlink and a compact fridge in a van or truck. It is cheap and sips little power at idle, but has no hardwire option or safety listing.
Amazon $179.96 Giandel $168.82For RVs that already have a converter or solar charging and want an inverter with a built-in transfer switch.
Amazon $398.74Prices 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 1,100 to 2,000 W 12V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Giandel PS-1200JCR 1200W Pure Sine | Go Power! ASW-1200-12-TS |
|---|---|---|
| Overall rating | 3.3/5 | 3.1/5 |
| Value 30% | 86 $0.14 per continuous watt | 33 $0.33 per continuous watt |
| Idle draw 15% | 87 0.7 A idle (about 8.4 W) with nothing plugged in | 13 1.8 A idle (about 21.6 W) with nothing plugged in |
| Safety listing 15% | 0 no UL 458 or UL 1741 listing stated | 100 Certified UL 458; cULus certified |
| Warranty 15% | 12 1.5-year warranty | 25 2-year warranty |
| Features 15% | 35 remote included, display; no app | 52 optional remote, transfer switch, hardwire terminal; no app |
| Efficiency 10% | 56 90% peak efficiency (maker rating) | 67 91% peak efficiency (maker rating) |
| Giandel PS-1200JCR 1200W Pure Sine | Go Power! ASW-1200-12-TS | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 1,200 W | 1,200 W |
| Surge power | 2,400 W | 2,400 W for 3 s |
| DC input range | 9.8 to 16 V | 10 to 16.5 V |
| Idle draw | 0.7 A (8.4 W) | 1.8 A (21.6 W) |
| Power-saving draw | - | 0.1 A |
| Peak efficiency | 90% | 91% |
| Connections | ||
| AC outlets | 2 | 0 |
| GFCI outlets | No | No |
| Hardwire terminal | No | Yes |
| USB ports | 2 | None |
| Transfer switch | No | Yes |
| Parallel units | No | No |
| Control and build | ||
| Remote | Included | Optional extra |
| App | No | No |
| Display | Yes | No |
| Safety listing | No | Certified UL 458; cULus certified |
| Cooling | load-controlled fan | - |
| Dimensions | - | 227 x 86 x 346 mm (8.94 x 3.39 x 13.62 in) |
| Weight | 5.4 lb | 7.5 lb |
| Warranty | 1.5 years | 2 years |
