Gift you gave me for Christmas, this is actually a hybrid between a switch and a remote control for the whole range Hue, which I already have a few light bulbs and a LivingColors. Very good innovation: no batteries or power supply! It's a great idea, still in its infancy, I think, hence the still little soft side of mechanism, which requires that we support many thoroughly buttons. Although to store lighting scenes created on the first app Hue, but also to program: one can thus fall asleep with a Zen light that will go out alone, or wake up with a programmed soft or energizing atmosphere. The Tap is therefore both a switch and a remote control: no need to go out and unlock their phone or tablet in its permanence. It is certainly an investment, but frankly it's a very nice gift !!!!!