0.8 kW Microinverter with 4 MPPT trackers. DC input up to 60 V, MPPT range 15–60 V.
Max DC voltage
60 V
MPPT voltage range
15–60 V
Max input current per MPPT
14 A
Max short-circuit current
20 A
Nominal AC power
0.8 kW
MPPT configuration
4 MPPT × 1 strings
Max DC power input
2 kW
Inverter type
Microinverter
The EcoFlow STREAM Ultra X 800W (EF-EA-HD-U4K-800) is a 0.8 kW inverter suitable for residential and commercial solar installations. The panel matcher above shows all compatible solar panels with optimal string configurations calculated automatically based on voltage, current, and temperature limits.
Use our string sizing calculator for a detailed 7-check compatibility analysis with temperature-adjusted voltage and current calculations.
The EcoFlow STREAM Ultra X 800W (EF-EA-HD-U4K-800) has 4 MPPT tracker(s), each supporting 1 input string(s). The exact panel count per string depends on your panel's Voc relative to the MPPT range 15–60 V. Use the matcher above to find the optimal configuration automatically.
The EcoFlow STREAM Ultra X 800W (EF-EA-HD-U4K-800) MPPT accepts DC voltages between 15 V and 60 V. At summer temperatures, the string Vmpp must stay above 15 V. At winter temperatures, the string Voc must not exceed the absolute DC limit of 60 V. The matcher calculates these temperature-adjusted checks automatically.
Yes — the EcoFlow STREAM Ultra X 800W (EF-EA-HD-U4K-800) is compatible with any solar panel brand as long as the string voltage and current stay within its electrical limits. Panel brand does not affect compatibility. What matters is that the string Voc at coldest temperature stays below 60 V, Vmpp stays within 15–60 V, and total current stays below 20 A.