I had been looking for a Wifi light switch for a while, i did look at the bulbs, but having a controller in each bulb is ok, until the bulb breaks and then it costs a lot more to replace a single bulb, where as having the controller in the switch keeps the cost of the bulbs down. The switch is very deep and the backbox in my wall was not deep enough to fit the switch. I got a deep backbox and then chopped out the wall so that the box would fit. Once i had done that, wiring up the switch was easy. I downloaded the app and then setup the switch really quickly, it works really well and is responsive.