Motor can set upper & bottom limit positions and limits can be saved even when motor power off. Two running modes: tilting & continuous moving.Motor default mode is tilting. Motor can be control by APP on your smart phone, motor speed is adjustable on the APP. Bluetooth bi-direction technology, you can see the status of your shades in anytime, large battery capacity support long time working. Powered by charger or solar panel, the solar panel with built in light sensor for auto-control.