Brilliant. These adapters house the Philips Hue Wireless Dimmer Switch over the existing standard light switch, removing the temptation to switch the lights connected off and thus 'removing' them from use on the Hue App. They create a very neat alternative to having the Dimmer Switch mounted next to the existing switch, creating clutter on your wall. Easy to fit. For me the long replacement screws supplied with the adapter were too long, but better being too long than too short! I will be purchasing more of these as I continue to extend Philips Hue lighting throughout my house.