On roads and highways with a high volume of truck traffic, there is a greater risk of overlooking construction and work sites of all kinds. Experts therefore recommend the use of high, clearly visible advance warning systems, such as our mobile VarioSign LED warning trailer PHAROS 2.39 and PHAROS 2.0. The impressive LED trailer, with a total height of approx. 7 m, is clearly visible even from a great distance when unfolded and thus warns road users of an oncoming danger zone in good time, even if there is a traffic jam of trucks at the right-hand lane!