The color are very attractive in the day and night, the reflective strip/film will reflect to catch the attention of the drivers. Unlocked or locked mode configurations prevents unauthorised dismantling. The bases can be adjusted 360°. Mainly used in the crossing of the roads and toll station to warn the drivers, and reduce the accidents. Interlock design, interlocked one by one. Can accept warning signs and contractor information boards. Light simple,can be any combination,any move.