[1] The lighthouse was built between 1885 and 1888 on the 7-metre (23 ft) high islet of Bratthårskollen, north of Gripholmen.

This is the second tallest lighthouse tower in Norway.

The lighthouse's range is 19 nautical miles (35 km; 22 mi), and the white, red, or green light, depending on direction, is occulting every eight seconds.

[3] The islet is barren rock with just the lighthouse tower, a concrete boathouse, and two wharves.

A radio beacon was operated between 1947 and 1986, which was replaced with a frequency-agile racon signalling "G" with a range of 4 nm.