1425 W EcoFlow STREAM Ultra X balcony power plant | Set with microinverter and 3x 475 W DAH bifacial solar module with grid balcony mount and 3.84 kWh storage

  • EcoFlow STREAM Ultra X battery with inverter
  • 3 x 475 W DAH bifacial solar panels = 1425 Wp solar power
  • Zigbee or Wi-Fi communication
  • 4 MPP trackers, monitoring at the module level
  • Includes 3 m connection cable for the solar panels
  • incl. 1.5 m Schuko cable for connection to the household socket
  • Includes mounts for the grid balcony

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Sale price1.620,77 € Regular price1.953,97 €
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SKU: EF10-140121

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Versandbereit in: 1 - 3 Werktagen

Product description

1425 W EcoFlow STREAM Ultra X Balcony Power Plant – Set with storage, 3 × 475 W bifacial solar modules & balcony mounts

Grid balcony setup with large storage reserve: This 1425 W EcoFlow STREAM Ultra X complete set combines 3 × DAH Solar Frame Black 475 W bifacial dual-glass modules, the EcoFlow STREAM Ultra X with integrated micro-inverter and 3.84 kWh storage, and 3 × WATTSTUNDE® BKW-HS balcony mounts (black). Ideal if you want to significantly increase your self-consumption and are looking for a fast, stable balcony installation on a grid balcony.

Maximum yields on limited space – 3 × DAH Solar Frame Black 475 W

The bifacial dual-glass modules from DAH Solar utilize light on both the front and back, enabling up to 25% higher energy yields compared to classic solar modules. The N-Type TOPCon cell technology ensures high efficiency, low degradation, and reliable performance – even in weaker light conditions. The 30-year performance guarantee provides additional investment security.

EcoFlow STREAM Ultra X – maximum flexibility with 4 MPPT inputs

The EcoFlow STREAM Ultra X is a powerful, AC-coupled power storage unit with a capacity of 3.84 kWh and 4 MPPT inputs (totaling 2000 W). Additionally, the system is modularly expandable (up to seven units) and can be integrated into existing balcony power plants via plug-and-play. It also powers stronger appliances up to 2300 W and optimizes self-consumption via the EcoFlow OASIS App and smart meter connection – for a flexible and efficient power supply.

Set contents:

  • 1 × EcoFlow STREAM Ultra X with integrated inverter and 3.84 kWh storage
  • 3 × DAH Solar Frame Black 475 W bifacial solar modules (dual-glass, N-Type TOPCon)
  • 3 × WATTSTUNDE® balcony mount BKW-HS (black) for grid balconies
  • 4 × 3 m connection cable (MC4) for solar modules
  • 1 × 1.5 m Schuko cable for grid connection

Simple installation on a grid balcony – ready to use quickly

Connecting to the STREAM Ultra X is particularly straightforward thanks to the 4 MPPT inputs: each module can be connected individually, allowing you to flexibly adjust orientation and tilt angles. The WATTSTUNDE® BKW-HS balcony mounts ensure a secure, stable attachment to the grid balcony. With the 4 × 3 m MC4 cables and the 1.5 m Schuko cable, the system is quickly ready for operation – without any specialist knowledge required.

Intelligent energy distribution – more self-sufficiency, lower electricity costs

The STREAM Ultra X recognizes your energy needs in real time, learns from them, and distributes electricity specifically where it is needed – whether in the kitchen, home office, or workshop. You can keep an eye on your energy flows via the EcoFlow app and conveniently optimize your consumption via smartphone.

Everything at a glance – with the EcoFlow App

With the EcoFlow app, you can control the generation, storage, and use of your solar power on the go. You can see live how much energy is being generated, how much is going into storage, and how much is being consumed directly – at home or on the move.

Your benefits at a glance:

  • Total output: 1425 W (3 × 475 W DAH bifacial) + 3.84 kWh storage
  • Bifacial technology for up to 25% more energy yield
  • N-Type TOPCon cells: durable, efficient, and temperature-stable
  • EcoFlow STREAM Ultra X: Plug-and-Play, 4 × MPPT inputs (totaling 2000 W), modularly expandable
  • Includes 3 × WATTSTUNDE® BKW-HS balcony mount for mounting on grid balconies
  • Intelligent control via EcoFlow App / OASIS App
  • Future-proof with up to 6000 charging cycles and 10-year warranty

The 1425 W STREAM Ultra X balcony power plant is the ideal choice if you want to combine smart technology, high-quality modules, and simple, secure installation on a grid balcony.


Technical Data DAH SOLAR 475W
Rated power 475 W
Max. daily yield (summer) 2850 Wh/d
Voltage (Umpp) 31.20 V
Current (Impp) 14.90 A
Open-circuit voltage (Voc) 36.60 V
Short-circuit current (Isc) 15.82 A
Cell efficiency 23.27 %
Cell material N-Type cells
Bypass diode 3
Weight 24 kg
Dimensions 1762 x 1134 x 30 mm


Technical Data EcoFlow STREAM Ultra X
Battery Lithium Iron Phosphate (LiFePO4)
Battery capacity 3.84 kWh
AC charging input 1200 W
AC output 1200 W
AC output grid-tied 800 W
AC charging input 10 A
Bypass output 2300 W (10 A)
Lifecycle 6000 to 70%
MPPT 4
PV input power 2000 W (4 x 500 W, max. 60V DC)
Connection Wi-Fi / Bluetooth
Protection class IP65
Operating temperature -20 °C to +55 °C
Weight 38.8 kg
Dimensions 420 mm x 294 mm x 460 mm
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