Professional off grid solar system solution which is a combination of big power inverter and solar controller. The SCI 9000 Watt Inverter Charger also comes with Digital Display and build in battery charger and solar MPPT regulator. Solar Ready the SCI is able to accept charging from your grid based 240V and pure sine generators or direct to batteries from your solar panels with the use of the build in MPPT solar controller. Featuring a 75Amp Max inbuilt charger with charger selector. How to check loads: Reactive load items require additional power when they start up. A surge factor of 7x the continuous power should be used for electric motors water pumps fridges air conditioner and washing machines. A surge factor of 3x should be used for kitchen appliances halogen and LED lights and other electronics equipment.