The Energizer Connect Smart A19 LED Warm White Light Bulb offers a warm shade of white with variable brightness settings. Control this bulb straight from your smartphone or tablet using the free Energizer Connect app on the Apple App Store or Google Play Store. Use the grouping function to control multiple bulbs simultaneously or create schedules to have the bulbs turn on or off at specific times. This device utilizes your current WiFi network, so there is no need to install extra wires or hubs.