Light phase 1

The Light phase is the sequence or pattern of the light shown, within one complete cycle.
We have the following common patterns:
Fixed (F.): this light shines with a steady and unblinking intensity
Flashing (Fl.): the duration of darkness is always greater than the duration of the light, and appears as a single flash at regular intervals.
The flashes occur not more frequently than 30 times per minute. For example Fl. 10s
Quick Flashing (Qk.Fl.): the duration of darkness is always greater than the duration of the light, and the flashes in this pattern are at least 60 times per minute.
For example Qk.Fl 20s.
Very Quick Flashing (V.Qk.Fl.): here again the duration of darkness is greater than the duration of the light, and the flashes are at least 100 times per minute.
Interrupted Quick Flashing (I.Qk.Fl.): in this pattern we have at least six quick flashes followed by a period of darkness (standard period of ten seconds) in one cycle.