The screenshots in this section will show the interface of the Lightify app as used to control the tunable white LED bulb. The layout is very simple and easy to use, and my only complaint is that it seems to take a few seconds to load up and connect to the bulb.
The app is very cleanly laid out, and while you can get extra text for some of the commands when you select them, I wouldn't mind if some of this stark white screen was filled with useful information. The screen below shows the devices tab, where we can see I have just the one bulb available. Along the top we see icons that allow you to connect locally or through the cloud, and along the bottom you can access the home, devices, features, and settings pages.
The main controller for your Lightify bulb is shown in the screens below. A series of concentric circles allow you to control the bulb. At the "bullseye" we have an on/off button. The next ring out lets you adjust the light appearance, the ring after that controls dimming, and the outer most ring does not apply to this bulb and is there to control the RGB color of other products. Clicking the heart on the upper right allows you to save your current settings as a favorite. Along the bottom we see different modes for control, with the concentric circles approach shown on the left, followed by a tab that includes a few presets, then your favorites, and for some reason a tab that launches your phone's back camera within the app.
The below left image is actually from the Sylvania site, since I struggled to capture my own version of this view. When you press and drag your finger to use a concentric for appearance / dimming, the screen changes to give you feedback on what you are doing. As shown, the user has dragged the appearance ring to about 50%, which corresponds to about 4634K. This action is very easy to do, and the light bulb follows the slider on screen fairly smoothly. The process is similar for dimming, except that there are clearly a few dimming levels, and it steps through them in a less smooth manner. The below right image shows the presets, where you can quickly go from "Relax" to "Active" with one click... "Plant Light" does not apply to this bulb, as mentioned previously.
The video below is just an example of what the bulb can do... I set it up next to the chair where my kids like to read, and just randomly cycled it on/off, through the full appearance range, as well as through the full dimmable range.