... patterns: ROTATE, double blink, single blink, alternative, SOS (Morse code) for rescue, solid-on (high), solid-on (low), 2LED flashlight and ... car drive over it! * Completely waterproof! It even floats! Perfect for boats and watercraft safety, also it is no problem working ... underwater 1/2mile.* Standard red LED is perfect for clear weather. In foggy conditions the yellow and blue LED ...