Warning equipment at road work sites has direct requirements: the body must withstand wind and rain, the warning must be striking enough, and the use must be flexible enough. The LED Arrow Board responds to these needs one by one — through material, illumination, modes, power supply, and installation — making the product genuinely usable and durable in real operations. Product Features Aluminum Alloy Plate Body — Both Lightweight and Sturdy The main body is formed from a