For warning applications, a high brightness (IC controlled) flashing LED that flashes like an emergency vehicle strobe.

A chain of multiple rapid flashes , a pause then another chain would alert users to danger better than conventional flashing LEDs.
-- FloridaManatee, Jun 03 2004

Interesting - a specific sequence of flashes which people would come to learn means 'danger'
-- hippo, Jun 03 2024



random, halfbakery