... powered LED maintenance-free lighting devices used in road construction to delineate road edges and centerlines. Use of solar road studs ... epoxy resin, etc. Unique Feature:l Stand-alone, solar-powered, maintenance-free illumination devices. Easy to embed in the road surfacel The ... , walkways, gardens, lawns, poolEasy installation, drill the hole according to the road stud, put the stud and the glue, and ...