Battery-powered LED road-flares

PowerFlare manufactures incredibly bright ruggedized LED roadflares that can be programmed to blink SOS and and be run over by cars without being hurt.

Ideal to keep in the trunk of your car or in a first aid kit, etc. Uses a Lithium CR123 battery that has a 10 year shelf-life and won't leak in harsh temperatures. Features 7 user-selectable flash patterns, including Coast Guard "SOS" Morse code for rescue and solid-on (lantern) mode for use as a lantern or power-fail light. LED colors: red, amber/yellow, blue, green, white, and infrared (IR). Outer shell (housing) color options: yellow, orange, yellow-green, and olive drab (OD).

Link

(via Gizmodo)