Highway Aluminum Solar LED Road Stud. US $ 11-12.5 / Piece FOB. MOQ: 100 Pieces. Since 2010. Main Products. Solar Zabra Warning System, Solar Road Stud, Solar Warning Light, LED Traffic Light, Solar Traffic Signs, Traffic Light and Signals, Tunnel Warning Lights, Portable Speed Bump, Traffic Barrier Cone and Parking Items, Safety Workwear.