KOEN
Fladholmen in the middle, with the lights within 20 km, in their listed colours.
Fladholmen — light characteristic, height, range
White, dark once every 6 seconds (colours listed: white, red, green)
Keep the white light on.Every 6 seconds, go dark once.Begin again.
- Characteristic
- Oc WRG 6s
- Height
- 18 m
- Nominal range
- 9 nmi = 17 km
- Type
- Fyrstasjon
- Position
- 58.9224°N, 5.5555°E · Vest

Lights nearby
- LaksholmbåenGreen, 2 s on and 2 s off · 1.1 km
- Midtfjæra3 very quick white flashes every 5 seconds · 1.3 km
- TanangerWhite, dark 3 times every 10 seconds (colours listed: white, red, green) · 1.5 km
- MelingsholmenOne red flash every 3 seconds · 1.7 km
- Nilsagrunnen2 white flashes every 5 seconds · 2.2 km
- NesjarfluaContinuous quick white flashes · 2.5 km
- RottnesoddenOne green flash every 3 seconds · 2.8 km
- OksafodskjerWhite, 3 s on and 3 s off (colours listed: white, red, green) · 3.1 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