The Philips dimming kit gives you easy wireless dimming, it is battery powered and comes with 3 buttons which are on/off, dim up and dim down. You can use the Hue dimmer switch as a standard wall light switch just simply place it wherever you want using screws or adhesive tape to attach it to your wall. Installation is quick and easy with no wiring involved so you won't need to worry about the cost of installation. The Philips Hue Wireless Dimming kit comes with 1 E27 LED smart bulb which will fit into any existing E27 fitting. The dimmer switch can control up to 10 different Philips Hue Smart light bulbs around your home in a 12 metre range. If you have a Philips Hue Bridge installed in your home then you can pair the dimming kit into your system using your smartphone or tablet. This allows you to control your lights from your smartphone, tablet or Amazon Echo meaning you can set timers, notifications, alarms and more.