Arduino And Relay, some help for this little 12v project - Motors, Mechanics, Power and CNC - Arduino Forum

Hello all, I am trying to connect a 12V fan heater to the arduino, the result that i would like to get is using the arduino UNO to power on and off the heater, i am little bit confused about using relay and i have got some question about it, but first i will tell you what i am using in this circuit: the battery of the circuit will be a 12V 45Ah car battery ( not connected to a car ) the heater is 12V 13A 150W. Genuine Arduino UNO Now the first question is what kind of relay module should

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