prožektor - kaugvalgustusvahend, mille valgus on nõguspeeglite või läätsedega (p-i optilise süsteemiga) koondatud suhteliselt kitsaks, äärtel nõrgenevaks vihuks
a lighting fitting which, by means of mirrors or lenses, concentrates the light in a limited solid angle so as to obtain a high value of luminous intensity
Regulation X/5 (Signalling equipment)
In addition to the provisions of Regulation X/5, every vessel shall, when operating in waters where drift ice may occur, be fitted with at least one searchlight with a lighting capacity of at least 1 lux, measured at a distance of 750 metres.
