One piece of cord can be used to life, decline automatically and control the angle of blade. Pulling the cord lightly, it will decline automatically.
2. To operate smoothly at the below position, and stop the moving of bottom rail when it inclines, it can enhance the brightness and be also sun-sheltered.
3. There is a barrier automatic stopping device inside. If it touches the barrier when it declines, it will start the special alarm device to stop the blade’s decline. Thus it can prevent series of malfunction caused by it.