Character:a．It adopts two stainless tightwires to rise and fall,can prevent twisting or unnecessary turningb．Power supply linked with base plate and the part for rising and falling.c．Have the function that can stop automatically.d．Compound and control the circuit, a switch can control several devices for rising and falling at the same time e．The earth terminal can make the linking wiring more simple and convenient.Suitable location: Suitable for high area such where it is inconvenient to work ,such as the factory of high ceiling , power plant , warehouse ,etc.
