Victron Energy Phoenix 12/1200
(5 reviews)
A thousand watts of true pure sine power from a 12-volt battery: the go-to inverter for RV owners and boaters, backed by a 5-year warranty.
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Characteristics
- Output: 1000W continuous, 2200W peak
- Waveform: True pure sine wave, 120V/60Hz
- Standby: ECO mode, 1W draw
- Format: 7.4 kg (16.3 lbs), NEMA GFCI outlet
- The pure sine wave that runs nearly anything
Detailed overview: Victron Phoenix 12V 1200VA pure sine wave inverter
The Victron Phoenix 12/1200 VE.Direct converts a 12-volt DC battery bank into 120-volt AC power for an RV, a boat, or an off-grid cabin. Rated at 1200VA, that works out to 1000 watts continuous at 77 degrees F and 850 watts at 104 degrees F, with an admissible 2200-watt peak. It is the model in Victron's lineup that opens the door to real household appliances rather than just charging small devices.
The output is a true pure sine wave, generated through a full-bridge topology paired with a toroidal transformer. That architecture explains the 7.4-kilogram (16.3-pound) weight and the series' reputation for toughness: it tolerates brief overloads and the heat or vibration of an engine room better than a lightweight high-frequency design.
ECO mode drops standby draw to a single watt when no load above 15 watts is present, versus 10 watts in normal operation, waking briefly every 2.5 seconds (adjustable) to check for a load. Left connected on an RV or boat battery over a season, that difference adds up to real amp-hours saved.
The VE.Direct port allows configuration of low-voltage alarm and cutoff thresholds, load-dependent dynamic cutoff, output voltage, and frequency, using a Bluetooth dongle or a USB cable and Victron's free app. The output outlet includes built-in GFCI protection, a meaningful safety feature for anyone installing near water. The DC input accepts 9.2 to 17 volts and cuts off at 9.3 volts. The enclosure is rated IP21 and connects through screw terminals accepting heavy-gauge cable. Victron backs the unit with a 5-year warranty.
If your needs stop at a laptop, a TV, and charging tools, Victron's smaller Phoenix 12/500 does the job at a lower price. For anyone wiring toward 1000 watts, check your battery bank capacity first: at full output the inverter draws close to 90 amps, more than a small battery can sustain for long.
Related video
Video: Pure Sinewave Inverter for off-grid RV or boat. Small & compact Phoenix VE.Direct - Published on 03/03/2022
Our tester's review: Gilles Caron
A thousand continuous watts is where an inverter stops being a stopgap and becomes a real onboard power supply. Below that you charge gadgets; here you run a coffee maker, an entry-level microwave, a power tool, or a compressor fridge without a second thought. The 2200-watt peak matters just as much: it absorbs the surge of a motor starting, the exact moment cheaper inverters trip their own protection. The Phoenix produces a true pure sine wave through a toroidal transformer, an older but proven design Victron has stuck with over lighter electronics. That explains the 7.4-kilo weight, and the reputation these units have for surviving the heat and vibration of a boat engine room for years. ECO mode is the feature buyers underrate at first and rely on afterward: one watt of standby instead of ten adds up over a season. The built-in GFCI protection is a genuine plus near water. Two honest notes: the price is real money next to a cheap modified-sine box, and battery sizing matters, since 1000 watts out draws close to 90 amps at 12 volts.
Frequently asked questions: Victron Phoenix 12V 1200VA pure sine wave inverter
At full power it draws close to 90 amps at 12 volts. A 100 amp-hour lead-acid battery lasts only about thirty minutes at that load and would be discharged too deeply. Plan on a lithium battery or a 200 amp-hour bank for comfortable use.
An entry-level microwave rated around 700 watts of cooking power, yes, since real-world draw runs close to 1000 watts and the 2200-watt peak absorbs the startup surge. A full-size microwave or an induction cooktop will exceed its capacity.
Yes. The Phoenix 12/1200 ships with a NEMA outlet that includes built-in ground fault protection, an important safety feature for installations near water on a boat or in a bathroom.
It can with very low-draw devices, such as a phone charger used alone, which the inverter may fail to detect and leave in standby. The detection threshold is adjustable through VE.Direct, and ECO mode can simply be switched off if needed.
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Published on 02/09/2026