Ruadh Sgeir lighthouse

Ruadh Sgeir is a solar-powered minor light beacon that was built in 1983. It stands on a raised square concrete base, which is accessible by a concrete stair. The lighthouse features a cylindrical glass reinforced plastic (GRP) tower topped with a metal gallery and a conical-roofed lantern that has triangular-shaped storm panes and astragal bars. The automatic LED light flashes white every six seconds and has a range of eight nautical miles.

On the eastern side of the lighthouse, there are two entrance doors: one at ground level and another at balcony level. Solar panels are installed on the southern side of the structure.

Inside, the space is divided into two sections. The lower section contains electrical and communications equipment along with banks of batteries, and it has small porthole windows. The upper section houses the light.

Historically, a minor light was first established on Ruadh Sgeir in 1906 by David A and Charles Stevenson, as announced by the Northern Lighthouse Board in a Notice To Mariners on November 13, 1906. The original light was replaced by the current GRP structure in 1983, which was initially powered by acetylene gas but was converted to solar power in 2002.