Battery sizing for a house that uses 
1) 10 watt LED bulb used 4hours per day
2) 70 watt fan used for 2hours per day
3) 75 watt refrigerator that runs 12hours and off 12hours 
total appliances used= (10w x 4hours) + (70w x 2hours) + (75w x 12hours) 
nominal battery voltage= 12V
days of autonomy = 2days 
my question is how do you arrive at your answer which you give as “ Total Ampere-hour require as 352.94 approx 400Ah”? 

because in my own calculations, 
Ampere-hours = watt-hour/ volt
                390        = 4680/12
390Ah that’s my own answer using required 195W at 24hour