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Delta Warning is a emergency triangle warning sign used in vehicles when it unexpected break down and stop in the traffic road. While the traditional warning signs cannot effective reflect the rear lights of the vehicle in the dark and could easily be blown down. In some conditions, the distance from the car to where you place the warning sign is fraught with hazard. The Delta Warning with a portable LED electric torch can ensure your safety when you place the sign. You can simply wave this portable rod while walking to the designated place. This rod can be expanded into a pyramid like a tripod, three hidden rod will reinforce the structure.