Ultra 800 W balcony solar power system – 2x SOLTURA 400 PRO + EcoFlow STREAM

There are balcony solar systems that just work. And then there’s this set. The difference is in the components: SOLTURA 400 PRO stands for the best of AutoSolar’s in-house development—made from A-grade cells, engineered for long-term use. EcoFlow STREAM represents the best the microinverter market has to offer today—with Eco-AI control, a 10-year manufacturer’s warranty, and an IP67 rating. Together, they make a balcony solar power system without compromise.

SOLTURA 400 PRO – our best panels. For everyone who refuses to settle for second best.

Each SOLTURA 400 PRO panel delivers 400 W maximum output from 72 monocrystalline A-grade solar cells—the most efficient cell technology available today. The all-black design with an anodized aluminum frame and black busbars is visually discreet and technically uncompromising. Hail-resistant safety glass and an IP65-rated junction box with pre-installed MC4 connectors ensure the panels operate reliably in all weather—summer and winter, rain or shine.

EcoFlow STREAM – the smartest microinverter on the market

The EcoFlow STREAM receives power from both panels via two independent MPPT inputs and converts it into grid-compliant household electricity—up to 600 W AC (CH standard). The integrated Eco-AI continuously analyzes the household’s energy profile and decides in real time how much solar power to feed in and how much to draw from the grid. There’s also seamless integration with smart home systems and compatible smart meters. Everything is controlled via the free EcoFlow app, which provides full transparency on generation, consumption, and feed-in.

Plug and Play – ready in under an hour

The set is designed so that neither an electrician nor a building permit is required. The panels are connected to the EcoFlow STREAM using the supplied MC4 solar cables; the unit then simply plugs into a household outlet using the included AC cable. If you have a balcony, patio, or garden with an outlet nearby, you can be up and running in under an hour.

What this set costs—and what it brings back

For a limited time at an introductory price of CHF 699. With a realistic annual production of around 680 kWh and a current Swiss electricity price of CHF 0.29 per kWh, this set achieves yearly savings of around CHF 200. That means a payback in under 4 years—earlier depending on location and orientation. The panels are designed for a service life of at least 25 years: that means for over 20 years this set will produce electricity that simply costs you nothing. Over the entire lifetime: savings of over CHF 4'000.

Technical specifications – SOLTURA 400 PRO (per panel)

• Maximum power (Pmax): 400 W
• Open-circuit voltage (Voc): 46.6 V
• Short-circuit current (Isc): 10.91 A
• Voltage at max power (Vmp): 39.6 V
• Current at max power (Imp): 10.10 A
• Cell technology: Monocrystalline, 72 cells, A-grade
• Design: All-black, anodized aluminum frame
• Dimensions: 1980 × 1000 × 40 mm
• Weight: 22.5 kg
• Junction box rating: IP65
• Connection cable: 90 cm, MC4 pre-installed

Technical specifications – EcoFlow STREAM microinverter

• Max. PV input power: 2x 600 W (per MPPT)
• PV MPPT voltage range: 11–60 V DC
• Max. PV input voltage/current: 65 V DC / 16 A per MPPT
• Max. grid-tied AC output power: 600 W (CH standard)
• Max. AC output current: 2.8 A
• Start power: from 3 W solar input
• Operating temperature: –40 °C to +65 °C
• Ingress protection rating: IP67
• Connectivity: Wi‑Fi / Bluetooth
• Warranty: 10 years
• Dimensions: 252 × 180 × 35 mm
• Weight: approx. 3.2 kg (net)

Scope of delivery

• 2x SOLTURA 400 PRO solar panel, all-black, 400 W
• 2x hook brackets
• 1x EcoFlow STREAM microinverter, 600 W
• 1x STREAM AC cable, 5 m (CH-T12)
• 4x STREAM solar cables (MC4), 2.95 m

Additional mounting brackets are available separately.

Swiss Warranty – Local. Professional. Environmentally friendly.

As the manufacturer of the SOLTURA product line and an authorized EcoFlow partner, we provide the Swiss Warranty for all components in this set. In the event of a warranty claim, your products are inspected and repaired in Switzerland—short distances, expert support, no shipping abroad.