Electronic Visual Distress Signal Device (eVDSD) also know as Electronic Flares
Advances in LED technology mean that battery operated electronic distress signals are well set to take a share of the burden from traditional pyrotechnic flares.
Electronic Distress Signals benefit from extended illumination times and are far safer to use with no risk from heat or flames. Yachtsmen and boating enthusiasts generally are increasingly opting to use electronic LED signals because they are inexpensive, safe to test, simple to use in an emergency and easy to dispose of when they finally need replacing.
The further advantages of LED flares are that they don’t go out of date, have a much longer burn time, and are generally much safer than pyrotechnics.