| 摘要 |
An alarm signal tube is provided to enhance visibility at night by using LEDs for displaying various characters and designs. A main body(10) is an air injection type tube using a flexible synthetic resin. The main body has a bottom surface formed by an air injection process. A magnet part(20) is installed on the bottom surface of the main body in order to play a role of a center of gravity. The magnet part is attached to a steel material. A light emitting body(30) includes a sheet attached to the outside of the main body to display a warning message and design, and an LED installed in the main body corresponding to the warning message and design of the sheet. A power supply unit(40) is installed at one side of the main body in order to supply the electric power to the main body.
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