Prefer to have a kind of bulb that can illuminate and also be used as a wake-up clock for you? It is not impossible. The smart LED bulb we offer here can help you achieve these two goals easily. You can control the bulb and changing the light color through the app you download in your phone before. With it, you can have a different life the moment you choose the product. Feature - Color: As shown. - Material: Plastic. - Size: About 10 x 6 x 6cm/3.9 x 2.4inch(LxWxH). - Mobile device App control. Support shaking mobile device to change colors randomly. Four special colors effect, including pulsing, rainbow, fading and flashing. - Wake up and sleep setting. Personalize your favorite time and color for waking up or going to sleep. Multiple color choices for you. - Single or group control. No hubs needed. Wirelessly control a single bulb or bulb group via App. A lot of bulb groups can be created and each group up to 5 bulbs. Together with four special effects, you can enjoy color and embrace fun. - The LED bulbs are simple to install and use. Simply screw the bulb into a lamp holder (E27), power it on, download the free X App for iPhone, and Android phones or tablets. And you have the wonderful light bulb at your fingertips. Its life time up to 20000 hours and the brightness is equal to a 40W incandescent bulb. Specification - Voltage: 100-240V/50-60Hz - LED power: 5W - version: 4.0 - Wireless distance: 15m - Color temperature: 3000K - Lumen: 280lm - Lifespan: 20000 hours - Lamp base: E27