KOEN
Slettringen in the middle, with the lights within 20 km, in their listed colours.
Slettringen — light characteristic, height, range
2 white flashes every 15 seconds
Count 15 seconds.Flash white, 2 times.Begin again.
- Characteristic
- Fl (2) W 15s
- Height
- 46 m
- Nominal range
- 18.5 nmi = 34 km
- Type
- Fyrstasjon
- Position
- 63.6660°N, 8.2628°E · Midt-Norge

Lights nearby
- Slettringen bifyrWhite, 1 s on and 1 s off · 1 m
- SildholmenWhite, dark 2 times every 8 seconds (colours listed: white, red, green) · 1.3 km
- TitranRed, 1 s on and 1 s off · 1.7 km
- HåvikaWhite, 3 s on and 3 s off (colours listed: white, red, green) · 4.8 km
- BustvikOne red flash every 3 seconds · 5.5 km
- GaltenOne green flash every 3 seconds · 6.3 km
- KvistenWhite, dark 3 times every 10 seconds (colours listed: white, red, green) · 9.9 km
- SynnkyaWhite, dark once every 6 seconds (colours listed: white, red, green) · 11 km
Not for navigation. Use the country's official charts and Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: Kystverket navigation aids (Norwegian Coastal Administration) (opens in a new tab) · Checked