My installed Wemo Switch works great. One switch installed to have 3 porch lights connected to it. What I really like is that I can set a Rule while using the ‘Wemo’ App to have my lights automatically come on All 3 at once at the time I set, and go off at the time I set daily, and watch it happen without ever opening the App, unless I want to adjust the times. Also, if it’s a dark dreary day I can still use the switch manually and depress the switch to come on and off still, even while the times I previously entered remains scheduled and working. In answering your question; Yes, I have 3 lights working from one Wemo switch. Love this!!