There is an ability of the identification of lights with one of most difficult and very important abilities in the marine navigation.

After general acquainting oneself with characteristics of lights, a lighthouse feeling at sea and for observing the light one should make sure whether seeing him is possible that it isn't the different ship, the aeroplane, the star not to say the light of the car on the road (at one time during reaching the Hammerhavn port, I noticed the blinking lighting strange on the land how they showed late were these are lights of the car which went in the forest). One should after such assuring watch each other this way light so that determine his characteristics and the period then measure characterizations of blackouts and solar flares in the period with the centre half in the hand, of not very period! One should after the measurement identify the light with the object, with the lighthouse on the map and confirm characteristics of the light in the list of navigation lights.

	Characteristics of lights of the lighthouses
	Kind of the light Description Characteristics Fixed F The light not changing the brightness or colours     [view] Fixed and flashing FFL Permanent light built up with isolated solar flares     [view] Fixed and group flashing FFL(2) Permanent light built up regularly with the group of solar flares. Example: rozbłyskowe group in groups for 2 flashes.     [view] Occulting Oc Light around regularly with equal of oneself but clearly shorter than the duration of the light blackouts repeating itself. Not longer than 1,5s complex sentence.     [view] Group occulting Oc(2) Lighting broken about the determined number of blackouts in every group, separated from the next group clearly long with lasting shining. Example: broken group with groups for four blackouts.     [view] Izophase Iso Light around alternately changing and equal after oneself with times of shining and darkening. Not briefer than 2s period.     [view] Long flashing LFI Light which lasting 2s glitter is repeating itself regularly in or long, equal of oneself but clearly shorter than the duration blackouts.     [view] Long flashing group LFI(2) Light long flashing about the determined number of glitter, separated from the next group clearly long with lasting darkening.     [view] Composite long flashing LFI(2+1) Light long flashing group, consisting of two all sorts groups or the group and isolated glitter.     [view] Flashing Fl Light which flashes lasting for darkness briefly than equal of oneself but clearly shorter than the duration, 2s are repeating itself regularly in; equal or longer than 1,5s complex sentence.     [view] Group flashing Fl(3) Flashlight separated in every group about the determined number of flashes from the next group clearly long with lasting darkening. Example: Flash group with groups for 3 flashes.     [view] Composite group flashing Fl(2+1) Group, consisting of two all sorts groups or the group and the isolated flash flashlight. Example: Flash compound 2+1 (the group of 2 spinners and the isolated flash).     [view] Quick Q Light with flashes equal of oneself, repeating itself every at least 50 times per the minute, however less than 80 times per the minute.     [view] Group quick Q(4) Light about determined for the number of flashes in every group, separated from the next group clearly long with the lasting blackout.     [view] Group quick Q(6)+LFI Blinking group, consisting of the group of spinners and isolated glitter lighting.     [view] Interrupted quick IQ Blinking lighting group, which the blackout, lasting not briefly than 3s is coming after at least eight flashes in.     [view] Very quick VQ Light with flashes equal of oneself, repeating itself every at least 80 times per the minute.     [view] Group very quick VQ(3) Light fast flashing about the determined number of flashes in every group, separated from the next group clearly long with lasting darkening. Example: fast flashing group for 3 flashes in the group.     [view] Composite very quick VQ(3)+Fl Light fast flashing, consisting of groups of spinners of isolated glitter.     [view] Interrupted very quick IVQ Light fast flashing, which the blackout, lasting not briefly than 3s is coming after at least eight flashes in.     [view] Morse'a Code MO(A) Light with long and short spinners appearing in groups repeating itself, presenting signs of the Morse code.     [view] Ultra quick UQ Light of flashes repeated regularly in the figure of at least 160 times per the minute.     [view] Interrupted ultra quick IUQ Light of flashes repeated regularly in the figure of at least 160 times per the minute, given up regularly with appearing blackouts.     [view] Alternating ALWR Dye the light with the regular shift in the given sector.     [view]