120 volt AC winches are perfect for indoor or fixed applications, with access to a power outlet. Potential uses includes: shop cranes, boat lifts, boat davits, light towers, ventilation systems, dumb waiters, opening and closing of large horizontal sliding doors. All D-L StrongArm; electric winches are built for multipurpose hauling and pulling operations. They are not to be used as hoists for lifting, supporting, or transporting people, or for handling loads over areas where people could be present.