SONOFF Slampher R2 ITEAD Intelligent Light Bulb Holder 433MHz RF&WiFi Home Bulb Base Compatible with Home/Nest & Alexa Voice Control Note: To control the device using a remote controller indoors, a separate 433MHz RF remote controller is required. This is a 433MHz RF and WiFi-enabled smart bulb holder designed to work with E27 screw base light bulbs. The smart bulb holder can be remotely controlled via the eWeLink app on smartphones, enabling a smarter living experience. Features: Control your smart home together with family members. Fully compatible with Home/Nest and Alexa. App support: Free eWeLink mobile app for iOS and Android devices. Provides real-time device status updates through the app. Remote ON/OFF control: Turn devices on or off anytime from anywhere. Supports control via 433MHz RF remote controller. Supports up to 8 scheduled, countdown, or loop timing tasks for automatic on/off operation. Turn multiple devices on or off with a single tap. Enable triggers based on temperature or other environmental conditions. Supports managing multiple WiFi smart switches from one smartphone. 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 Frequency: 433 MHz Wireless Standard: 802.11 b/g/n (2.4GHz) Security Mechanism: WPA-PSK/WPA2-PSK Mobile Compatibility: Android and iOS Gang: 1 Enclosure Material: Fire-retardant ABS V0 Humidity Range: 5%90% RH, non-condensing Operating Temperature: 0C40C (32F104F) Item Size: Approx. 100 x 68 x 32mm Package Weight: 110g Package Size: 104 x 71 x 71mm Package List: 1 x Light Bulb Holder