This is 4.6 kW solar system I built.I was dealing with Tony and I had very good experience buying solar panels from Sun Electronics.Also Tony responds very quickly on my email requests.I’m very happy with my small solar plant which can give up to 23kWh a day into the grid on sunny day down here in sw florida.I did it all myself and pulled all permits from county as a owner-builder.Then signed interconnection agreement with FPL (power Company).All works well and cuts our monthly power bill about 50-100%.