Home | Marine Aids to Navigation | Daymarks and Structures Supports for Lanterns Supports for lanterns on bridges are mainly designed to be adapted to existing structures and comply with IALA O-113 recommendation. Designed to adapt to the existing structure using chemical resin fixtures or screwed flanges. They can support self-contained or externally powered marine lanterns, and are used for marking bridges. Request moreinformation about Supports for Lanterns