SONOFF Slampher R2 ITEAD Intelligent Light Bulb Holder 433MHz RF&WiFi Home Bulb Base Compatible with -Home/Nest & Amazon-Alexa Voice Control Note: If you want to control the device by remote controller indoors, you need to buy an additional 433MHz RF remote controller. It is a 433MHz RF controlled & WiFi intelligent bulb holder that can connect to light bulbs with E27 screw base. Intelligent bulb holder can be remotely controlled through APP eWeLink by smartphones. Then enjoy your intelligent life.  Features: You can control your intelligent home together with your family. It compatibles perfectly with -Home/Nest & Amazon-Alexa. APP support: Free IOS and for Android mobile APP eWeLink. Provide to APP the real-time device status. Remote ON/OFF: Turn electrical devices on/off from anywhere anytime. Support controlled by 433MHz RF remote controller. Support 8 enabled scheduled/countdown/loop timing tasks to turn on/off at specified time. Turn on/off a gang of devices with one tap. Trigger on/off by temperature or other environmental conditions. Support several WiFi intelligent switches one intelligent phone. Specifications: Item type: Light Bulb Holder Screw Size: E27 Input: AC 100-240V 50/60Hz Output: AC 100-240V 50/60Hz  Max. Current: 2A Max. Power: 450W RF: 433 MHz Wireless Standard: 802.11 b/g/n (2.4gigahertz)  Security-mechanism: WPA-PSK/WPA2-PSK Mobile phone: for Android & IOS Gang: 1 Enclosure material: Fire-retardant ABS V0 Humidity: 5%-90%RH, Non-condensing Operating Temperature: 0ºC-40ºC(32°F-104°F) Item size: Approx. 100*68*32mm Package weight: 110g/3.88ounces Package size: 104*71*71mm/4.09*2.79*2.79inches Package list: 1 * Light bulb holder   Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.