Item Type: Smart Bulb Knob Switch <br>Material: Alloy <br>Battery: CR2032 Button Battery 240mAh ( Shipped With Built In Battery ) <br>Operating Voltage: DC3V <br>Maximum Current: ≤10mA <br>Wireless: for Zigbee3.0 <br>Wireless Transmission Distance: Open Range ≥ Approx. 30m/98.43ft <br>Working Environment: -5℃-45℃(23℉-113℉), ≤95%( Non Condensing).<br>1、Wireless Transmission Technology: This switch adopts wireless transmission technology, which can realize wireless linkage with other smart devices. Users can remotely control the switch through smartphones or other devices to realize intelligent control. <br>2、Low Power Consumption: This switch adopts low power consumption technology, with long battery life, and is easy to use, eliminating the cumbersome process of wiring and making installation simple and quick. <br>3、Expandable: This switch is expandable, so users can add more devices and build a more complex smart home system to meet different needs. <br>4、Excellent Alloy Material: This switch is made of excellent alloy material, which is sturdy and wear resistant, and not easy to be warped, as well as high temperature resistant and has a long service life. <br>5、Dimming Control: This switch realizes dimming control of lights in home scenarios, which can be adjusted according to the weather as well as the level of brightness and darkness to provide a more comfortable lighting experience.<p>1 x Knob Switch</p><p>1 x Wall Suction Cup</p><p>1 x Manual</p>