| 摘要 |
A device for signaling traffic on highways is disclosed herein and includes an elongated handle fixedly supporting a sign board on one end thereof. The board is provided with a central opening for mounting or placement of a flash tube or bulb so that the light rays radiating from the bulb progress outwardly from both sides of the board. A pair of parabolic reflectors are arranged in back-to-back relationship to increase the illumination of light be radiated. The bulb is carried on a snap-clip which secures a pair of reflectors together and a Fresnel lens covers both reflectors to further enhance the light radiation. The board includes a display area for carrying indicia co-related to warning of the traffic. Batteries in electrical circuits connected to the bulb, a switch and an interruption circuit are carried in the elongated handle.
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