Built-in 4000mAh lithium battery, the curtain controller operates with low power consumption, solving charging troubles and providing a long companionship of 6 months Simple installation: Curtain motors can be used on Roman curtain rods, no tools are required, no complex wiring is required, and installation is the most convenient Temperature and light sensors: Curtain temperature and light sensors can be adjusted according to your daily routine. When the temperature and brightness are higher than the set values, the curtains will automatically close to create a comfortable home environment for you Percentage control: The curtain motor adds personalized functions. You can choose to open all the curtains or open some curtains without worrying about the room being too bright or too dark Timing control: Curtains can be opened or closed at scheduled times. The curtains open automatically in the morning so you can slowly wake up in the sun without being woken up by the alarm clock, and they close automatically at night Roman pole installation conditions: If your curtains are perforated curtains, the top of the curtains to the ceiling must be greater than or equal to 40mm, and the shortest distance between adjacent Roman circles must be greater than or equal to 95mm. To use this product, you need to distribute the curtains evenly before using traction ropes and fixing clips If your curtain is a hole-hung curtain, the thickness of the hanging ring must be greater than 4m This product is not suitable for go-through rod type curtains Suitable pole diameter range: 13-38mm This product is only suitable for Roman poles with the same thickness. It is not suitable for telescopic Roman poles and other Roman poles with different ends Installation Precautions: To ensure the installation effect, please wipe the track surface clean before installing the curtain controller After the curtain controller is installed, you can set up smart controls such as timing light/temperature closing of the curtains in Tuya Smart or Smart Life app. If you need to use light to control the closing of the curtains, please face the window and install the curtain controller on the side close to the window. In order to ensure the light sensor effect, please ensure that there is no opaque obstruction in front of the light sensor If you want to use a curtain controller to control dual-track curtains at the same time, you need to install curtain controllers for the front and rear curtains respectively, and the distance between the front edges of the front and rear rails must be greater than or equal to 5mm. If the distance between the front and rear tracks is less than 5mm, there may be mutual interference during opening and closing of the curtains It is not recommended to install curtain controllers on older tracks. Due to the aging of the tracks or rings, the material is fragile and may cause the curtains to fall off or fall If the height of the curtain itself is too high and the curtain fabric drags to the bottom, to ensure the product experience, please roll up the lower edge of the curtain until it is no longer in contact with the bottom To ensure the actual effect of the product, please scan the QR code in the manual to watch the product instruction video. And follow the instructions to install and use the product Specification:? Model: LY-1672 Product speed: 10m/s Single Controller Battery:?3.7V 14.8WH 4000mAh battery Battery life: 6 months Charging time: 8 hours Adaptation: Roman pole track Roman rod diameter range: 13-38mm Note: The Bluetooth-compatible connection curtain controller requires a gateway to connect to the smart speaker.