> Support Majority of CurtainsThe Curtains Driver comes with two versions, the Rod Version support all the types, while a more cost efficient Track Version only support U- and I-Rails> Up to 1 year Battery Life Between Each ChargeYou can choose from the huge 6000mAh rechargeable battery for using up to a year or even powering it constantly by USB-C port> Built-in Light SensorThe Built-in light sensor allows the Curtain Driver to be controlled based on brightness: save the energy on cooling and keep your eyes in a better comfort> Zigbee 3.0 ProtocolZigbee, the most stable and reliable smart home technology, is used to support automations and cloud intergrations> Easy Installation and SetupJust simply mount the Curtain Driver E1 onto the existing curtain track and finish installastion on the Aqara Home app > Multiple Control and AutomationsUse an Aqara switch as a physical controller, or control the curtains by schedules, sunrise/sunset, weather,geo-fencing and other customized automations> Maximum Load of 12kgThe Powerful motor allows the Curtain Drivers E1 to push and pull a maximum of 12 kilograms, which will likely support curtains made of all materials