When you have a smart switch, you have the option of using the actual switch or using a smart device, such as your phone! With advanced technology, you are able to turn your lights on and on from anywhere in the world with your smart remote (your phone). Once you program the smart switch to be controlled by your phone, you can also dim the lights from your phone as well if the bulbs are compatible. In this case, you don't have to have an actual dimmer to control the bulbs, and you can connect other smart bulbs in your space to be connected and controlled with the same app! As long as the smart bulbs are wired to the smart switch, they are easily controllable.