The feed-in limit is set by the country, not by the panel · review
VALE 900 Wp bifacial kit with an EcoFlow Stream inverter review
A 900 Wp bifacial balcony kit built around an EcoFlow Stream micro-inverter with two MPPT trackers, IP67 and wireless monitoring, supplied with a 5 m AC cable.
The bottom line The best inverter in this family — two trackers, IP67, WiFi and Bluetooth, with a ten-year warranty behind the kit. It says nothing at all about brackets, which on a balcony is the part that decides whether it can be installed this weekend.
A 900 Wp kit assembled around an EcoFlow Stream inverter.
The inverter does the work here
Two MPPT trackers, up to 800 W output, IP67, WiFi and Bluetooth. On a balcony, where one module may catch morning sun and the other afternoon, independent tracking is worth more than a slightly larger panel.
What is in the box
Two 450 Wp bifacial modules, the inverter, and a 5 m AC cable. The fourth bullet says the cable is what is needed and that no electrician is required.
What is not said
Anything about mounting. Not that brackets are included, not that they are excluded. On a balcony kit that is the first practical question, and the SUNNIVA kit in this family answers it explicitly while this one leaves it open.
The regulatory silence
800 W appears as the inverter’s output. No ceiling, no registration, no socket type. This page reports the product figure and sends the rest to the rules where you live — which is where it belongs, but a listing that named them would be more useful.
Availability
German Amazon store quoted about 299 € when this page was compiled.
French, Italian and Spanish Amazon catalogues carry an entry for it, with nobody selling.
American and British Amazon stores returned nothing at all, so the buy button there runs a search instead of landing on an empty page.
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
Two MPPT trackers on the inverter, so the two modules can face different ways
IP67 on the inverter is published, with WiFi and Bluetooth both named
A ten-year standard warranty is stated
Compromises
Mounting hardware is not mentioned at all, in either direction
The socket type is not named despite a 5 m AC cable being supplied
No registration duty is mentioned, on a product where that duty exists in several countries
Specifications
Panel wattage
2 × 450 Wp bifacial, third bullet — 900 Wp total
Inverter output
EcoFlow Stream micro-inverter delivering up to 800 W, second and third bullets
Cap
Absent as a rule — 800 W is stated as the inverter’s output, not as a regulatory ceiling
Plug type
A 5 m AC cable is supplied, from the title; the socket type is not named
Mounting hardware
Not mentioned — the fourth bullet lists the cable as what is needed, and says no electrician is required
Monitoring
Integrated WiFi and Bluetooth on the inverter, first and second bullets
Stated registration duties
Nowhere in the listing; a 10-year standard warranty is stated in the fifth bullet
Amazon reference
B0FMFX9XWP (same reference on 4 Amazon marketplaces)
EAN
4262361725367
Questions owners ask about this one
Why do two MPPT trackers matter on a two-module kit?
Because one tracker manages both modules as a group, and a balcony rarely faces one way cleanly. With two trackers each module finds its own best operating point, so a shaded or differently angled panel does not drag the other down.
Does “no electrician required” settle the legal question?
No. It describes the assembly, not the permission. Whether a plug-in installation may be connected where you live, and whether it must be registered, is set by national rules and by your grid operator.
2 × 225 W flexible, 115.9 × 100.9 × 0.3 cm each · 800 W micro-inverter · cap not stated · 5 m connection cable, socket type not named · metal cable ties supplied, no drilling · app-readable inverter · registration duties not stated
A 450 Wp flexible balcony kit with two ultra-thin modules fixed by metal cable ties rather than brackets, and an 800 W micro-inverter readable from an application.
Best for: A rented balcony with an unusual shape, where nothing may be drilled and the fixings have to come in the box.
2 × 500 Wp bifacial glass-glass · 800 W DEYE micro-inverter · limited to 800 W under German Solarpaket 1 · plug-ready, socket type not named · NO mounting hardware supplied · monitoring not described · NA protection integrated
A 1000 Wp bifacial balcony kit with a DEYE 800 W micro-inverter limited to the German 800 W ceiling, supplied with cables but explicitly without mounting hardware.
Best for: A German installation where the buyer has already chosen a mounting system and wants glass-glass modules.
2 × 500 W bifacial glass-glass N-type · EcoFlow Stream 800 W micro-inverter · set to 800 W output, described as approval-free in Germany · 5 m socket cable, plug type not named · 4 MC4 extension leads, no brackets · EcoFlow app over WiFi · registration duties not stated
A 1000 Wp bifacial kit with an EcoFlow Stream 800 W micro-inverter, four MC4 extension leads and a 5 m mains cable, monitored through the EcoFlow application.
Best for: A German balcony where the panels should keep the inverter at its ceiling through a cloudy morning.
