X1-Hybrid G4, X1-FIT G4, X3-Hybrid G4, X3-FIT G4, X1-Mini G4, X1-Boost G4

Yes, you can turn it off in setting. menu- settings- eps settings- mute

10ms(UPS level) for single hybrid inverter. More than 10ms in parallel.

No

Yes, lower voltage means earler start-up.

FIT models is to store the energy for on-grid inverter, it has no port to connet PV input.

Yes, Hybrid series equipped with IP65  protection level. Pls follow the instruction of installation about the enviroment requirement

For X1-Hybrid G4, it supports up to 4×T30 or up to 3×T58 

For X3-Hybrid G4, it supports up to 4×T30 or up to 4×T58 

With the BMS parallel box, X1-Hybrid G4 can support up to 6×T58 and X3-Hybrid G4 supports up to 8×T58  

For the hybrid system, if the PV power is higher than the inverter's power, the surplus energy will be used to charge battery via DC to DC. Let's take 10kW hybrid G4 as an example, if the PV is 16.5kW, then 10kW can be converted to AC power, and 6.5kW will charge the batteries

If you disable 0 export control, excess energy will be injected to grid. If you enable 0 export control, inverter will limite generation power.

No, but it's better to work online, as we can provide remote support if there is any issue happened.

Yes, you can add the hybrid/Fit inverter into your exisiting string inverter system.

Yes, a meter or a CT is needed for export control(In the on-grid inverter series,only single phase on-grid inverters are compatible with CT,three phase on-grid inverters are not compatible with CT) . Once a meter or a CT is connected, you should configure the inverter via LCD screen(App for non-screen version). Go to setting item 'Export control' to enable meter(or CT) and then confirm how much power to inject to the grid. If you want zero injection, you just need to set the value to 0.

Yes. (Only WiFi2.0/WiFi3.0/WiFi+LAN adaptations have been updated so far)