They give a so-called white light "warm" which is closest to the light bulbs naturelle.Les are controllable via your smartphone, which allow you to play with your moods lights house.You can either just control a bulb or a group of bulbs at your convenience (change the time slot to light for example) .You can also program the blisters on the mood you want to avoid repeating the same operation, each time, they can simulate your presence at home, they light up randomly (super handy when you're traveling) .All these settings are to do with the application that will be available for download on Android or Apple stores. They feature LED technology, so they are cheap (they restore the equivalent of 60 watts, so that they consume 9,5w). They are controlled from anywhere as long as you have wifi or 3g / 4g, even when you are outside your home, you can control your inner light when you're outdoors. Installation is easy, install them with the Wemo Link module on the electric current, and then install the application on your tablet or smartphone. Everything is modular, that and say, you can control as you want, 1 light bulb 1 in particular, several bulbs that should light at such an hour with such lighting, you turn on and turn off you via your smartphone etc. .it's a small investment especially if you have a big house, but it's worth it.