Sunwoda Energy C&I solutions -All in one BESS (INV+BAT+Cabinet) -30kW/50kW hybrid inverter -Max: 60kWh/cabinet(5kWh/pack, max 12 slot in series connection); Max 180kWh/sytem ( 60kWh/cabinet * 3 in parallel connection) -Outdoor design, 10yrs wararnty, can work in -30-50 degree