: WIDELY COMPATIBLE: Suitable for stretch beaded, chain: 3mm9mm, nylon rope: 0,3mm4mm With Tuya application, one switch button can directly realize the automation of the blinds in the room HOME AUTOMATION: Using a simple and efficient method, one key switch to automate blinds, , curtains or in your home The upper and lower limits of the motor can be set as required, as well as set the highest and lowest opening or closing point It has a memory shutdown function, and the settings will not be changed when the device is turned on again SAVINGS : equipped with solar panels, the equipment can be charged with solar panels and chargers Built-in high capacity lithium, low operating voltage, long-lasting EASY TO INSTALL: it can be easily installed in several DIY process, no professional knowledge and installation tools required, just choose the right equipment to use with the chain After setting, you can automatically adjust the blinds CONSTANT SPEED AND TIME FUNCTION: Running and calibration speed can be adjusted by application External light sensor function can detect the intensity of sunlight and automatically start the curtain switch - Inner mesh panties Material: ABS plastic electronic Adapter: USA sizes: 165x34x43 cm/64.96x13.39x16.93 inch contains: 1x Solar Panel 1x American adapter 4x equipment 1x 1x instructions