I can recommend the Neptune apex controller if you want something hi tech, they have a Jr version that is website based that can run 4 outlets independently. They can have temperature, ph, or switch controlled events. The lite on has a limit of 4 add ons. I have the light version and I am quite happy with it. Digital aquatics also makes a controller, I looked at it but decided I likes having an app to control and monitor my tank, without having to buy add on network modules.