Modified sine is cheaper, and some appliances refuse it outright · review
TAGEEBLU 400 W pure sine, 12 V to 230 V, 700 W peak review
A 400 W pure sine inverter with a 700 W starting peak, an aluminium case and an earth fault indicator, whose listing contains a contradictory output voltage.
The bottom line A well-protected small inverter with an aluminium case and an earth fault indicator. Its own listing gives two different output voltages, which is the fault to resolve before anything else about it matters.
A 400 W pure sine inverter with six named protections and one contradiction.
The contradiction
The title states 12 V to 230 V. The first bullet states that it converts 12 V DC to 120 V AC. Those are different products for different continents, and nothing on the page reconciles them.
This site does not choose. It reports both and says the question has to be settled with the seller before the unit is wired to anything.
What is otherwise well specified
Six protections named individually — under-voltage, over-voltage, over-temperature, overload, short circuit, earth fault — with a digital display and indicator lights. The earth fault indicator is the distinctive one; none of the other seven inverters in this family names it.
An aluminium alloy case, specified against plastic, with resistance to harsh environments given as the reason.
The peak
700 W at load start, against 400 W continuous. No duration. That is the case for all eight inverters in this family without exception.
What is absent
Idle consumption and efficiency. On a 400 W inverter left switched on in a van, the first is the figure that empties the battery overnight.
Availability
German, French, Italian and Spanish Amazon stores quoted 43 € to 60 € when this page was compiled.
American and British Amazon catalogues carry an entry for it, with nobody selling.
These figures are what Keepa reported on the day this page was last updated. Availability and pricing move without notice.
Prices quoted in this text were read on 16 September 2026. The live price is at the top of the page.
What it gets right, and what it leaves out
Strengths
An earth fault indicator is named, which nothing else in this family publishes
An aluminium case is specified against plastic, with the reason given
Six protections listed individually with a digital display for status
Compromises
The first bullet says it converts 12 V DC to 120 V AC while the title says 230 V — a contradiction in the listing
No idle consumption and no efficiency
The 700 W peak carries no duration
Specifications
Waveform
Pure sine, first and second bullets, described as matching the mains waveform
Continuous and surge output
400 W continuous with a 700 W peak at load start, first bullet; the peak carries no duration
Idle consumption
Nowhere in the listing
Efficiency
Nowhere in the listing
Input range
12 V DC, from the title; no voltage range is published
Protections
Under-voltage, over-voltage, over-temperature, overload, short circuit and an earth fault indicator, third bullet
Cooling
Intelligent cooling system in a durable aluminium alloy case, fourth bullet
Amazon reference
B0FQBYY81J (same reference on 6 Amazon marketplaces)
EAN
0664404752431
Questions owners ask about this one
Is the output 120 V or 230 V?
The title says 230 V and the first bullet says 120 V. They cannot both be right, and this page does not choose between them. The answer has to come from the seller before the unit is connected to anything.
What does an earth fault indicator add?
It signals a fault current leaking to earth, which is a different fault from a short circuit or an overload. Naming it separately is unusual on this shelf, and it is the only one of these eight inverters to do so.
pure sine · 300 W continuous, 700 W peak, duration not stated · idle consumption not published · efficiency not published · 12 V input with a 40 A fuse · short circuit, temperature, under and over-voltage · variable-speed cooling fan
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Best for: A car where the load is a laptop and phones, and where the cigarette lighter socket rating has been checked first.
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Best for: An installation where the inverter lives under a seat or in a locker and has to be switched from the cabin.
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Best for: Occasional use from a car battery where the loads are small and the inverter is switched off between them.
