The Hi-Tech range of LED Port Entry, Range and Leading Lights are typically installed to indicate a clear line of passage. Mariners use these aids to easily distinguish shipping channel entrances, safe passage through hazardous waters, and shoulder leads to assist with large vessel docking. Lanterns are available in a range of LED colours to ensure clear distinction against confusing background lighting, as well as GPS and hard-wire flash synchronisation, GSM monitoring and control capabilities.