Main types and selection · Indoor type (full-height): The pillars reach from the ceiling to the floor, so no additional weights are needed. It is suitable for interior renovations in spaces with low ceiling heights (up to 3 meters). · Outdoor type (with additional weights): Suitable for use on rooftops or outdoor areas; additional weights are necessary to prevent the unit from toppling over. If there is a wall around the rooftop, it is recommended to use a version with an extended boom. · Power supply options: 220V household voltage is convenient but provides less lifting power; 380V offers greater lifting power and faster movement, but requires industrial-grade electricity.