LED Description: This bulb can work with Adjustable Color Temperature remote control, or by iOS or Android App via WiFi controller. Pls read the instruction manual carefully before using. Quick and easy installation of the smart LED Bulb is the same as any other common light bulb. The bulb must be screwed into the light socket and switched on at the wall for 2.4Ghz wireless operation, allowing the remote control/App to turn the LED bulb on/off, dim/brighten and color change. Secure communication is done by syncing the remote/App and bulb once. Light Color:Dual White (Warm White and Cool White) Voltage (V):86-265v Frequency(Hz) :50-60 LED Power(W) :9W Luminous flux(lm):850 Light effect(lm/w):85 Color temperature(K):2700-6500 Lifespan(h):50000 PF(cos):0.65 Current(mA):35-65 Max diameter(inch) :2.4 Max Length(inch):4.8 Lamp Base:E27 Material of LED Bulb Housing :Aluminium housing RemoteDescriptions: The WiFi controller can be used to all Mi Light the 2.4G smart light series, RGB light bulb, RGBW light bulb/down light, dual white light bulb/down light, etc. With this simple WiFi controller, you can control your lights with iOS 5.0 or Android smart phone App, free download from Apple App Store, or Android Google Play with the new App name: Mi ¡¤light, automatically setting and you are ready to go! Package Include: 4x 2.4Ghz 9W LED Bulb Light 1x WIFI Controller 1x USB connection cable 1x English manual