Flashing photo automatic machine 4V (NP-4D)

The photoautomatic unit is designed for automatic switching on (in the dark time of day) and automatic switching off (in the light time of day) of lamps of navigation lights of inland waterways. Photoautomatic units are replaceable and spare parts of navigation lights, which are intended for marking inland waterways - marking the axis and edges of the ship's course, dangerous places at the edges of the ship's course, as well as other warnings in the dark time of the day in accordance with GOST 26600-98 "Navigation signs of inland waterways". NP-4D photo-automatic unit provides flashing character of the light with 4V supply voltage.