Total shock proof (we need not to touch the switch board as it operates with remote control). Energy saving (reduce your energy bill by putting off lights, fans etc. with remote control when not needed). No need to change existing wiring. 3 year warranty. No need for two way wiring (saving in two way wiring cost). Operate through remote control as well as from main unit manually. All lights and fans can be switched off with pressing of All Off key. Only one light and one fan will work when inverter is ON to avoid unnecessary load on invertor.