Cheese

Ok, If I have a 48V I would only need 50AH for the 100Watts for 12 hours. To get the 48V I can connect 4 12V batteries in series, I assume each one of the batteries need to be 50AH

Ok, Thanks that makes a big difference.

I would like to use these permanently , replacing the 'EsKom' Lights . But a 200AH baattery seems to be quite big for 5 20W lights for 12 Hours Or is this just how it is.

Hi, I have been thinking about solar for a couple of years , but financially I do not hav ethe funds and secondly power consumption is low therefore return on investment will be long. For our household of 3 we use 15-18 KW per day. I will therefore keep on looking for a Cheap solution but thought about to just set up solar lights outside as a Security precaution during loadshedding and to start to learn about solar a bit more. I was thinking about 5 x 20 W 12 V lights. For this I would only need solar Panel/s , a charge controller and Battery if I am correct. If I work out what the battery for 12 hours it gives me 100AH , end therefore I need to purchase a 200AH battery. I would like to know if this is correct , as 200AH battery seem big if I only have a few lights on, although it is for 12 Hours. What Solar Panel would I require to charge the batter @ 6 hours a day. Thanks Cheese.