| 摘要 |
A position indicating device for a fire extinguisher to change left and right displays comprises: a body which has an open one surface and transparent windows on both surfaces; a cover which is coupled to one surface of the body and opens and closes one surface of the body; a pair of PCB substrates which have multiple chip LEDs arranged in rows and columns and are formed on both sides of the inside the body to allow the chip LEDs to face the transparent windows of the body; and a control part which controls the pair of chip LEDs of the PCB substrate individually, to display letters or pictures. |
