LAMPHUS SolarBlast 3W LED Emergency Firefighter EMS Vehicle Deck Grill Warning Light Head (Flash Mode Sync-able across Units) - RED User Manual available for download under Product Information Details Search for "LAMPHUS SolarBlast SBLH03" on Youtube for product video. Super bright high intensity LED strobe light for day/night usage. 12 flash patterns, sync-able between multiple units; Waterproofed, can be mounted to almost anywhere. Self-contained, external flasher not needed, easy operation.; Black flange included.