Answer: Function: In order to ensure that the elevator must be operated after all the doors are closed, the door electrical interlock switch is installed on each hall door and car door. Only when all the door electrical interlock switches are fully connected, the door lock relay of the control panel can be closed and the elevator can operate.
LED street lamp refers to the street lamp made with LED light source, which has the unique advantages of high efficiency, safety, energy saving, environmental protection, long life, fast response speed, high color rendering index, and is of great significance to urban lighting energy saving.
Led Road Light,Led Off Road Lights,Led Roadway Lighting,Cob Led Road Light
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