Subcategories
1x 2 double flashes + 2x 2 quad flashes
1x 2 double flashes + 2x 2 inverted quad flashes
2 double flashes + 2x 2 quad flashes + 2x 2 inverted quad flashes
1 continuous light + 2 flip-flop flashes + sequence of 3 consecutive leds with 3 blinks