KOEN
Cleveland Harbor Main Entrance Light 1 in the middle, with the lights within 20 km, in their listed colours.
Cleveland Harbor Main Entrance Light 1 — light characteristic, height, range
Green, 3 s on and 3 s off
On for 3 seconds.Off for 3 seconds.Begin again.
- Characteristic
- Iso G 6s
- Height
- 39 ft · 12 m
- Nominal range
- 7 mi = 11 km
- Structure
- Tower.
- Position
- 41.5102°N, 81.7155°W · OH

Lights nearby
- Cleveland Harbor Main Entrance LightOne red flash every 6 seconds · 240 m
- Cleveland Harbor Light 3One green flash every 4 seconds · 313 m
- Cleveland Harbor Light 4One red flash every 4 seconds · 417 m
- Cleveland Harbor East Basin Channel Lighted Buoy 8One red flash every 4 seconds · 686 m
- Cleveland Harbor Light 5One green flash every 2.5 seconds · 761 m
- Cleveland Harbor Light 6One red flash every 2.5 seconds · 772 m
- Whiskey Island Marina Entrance Light 1One green flash every 2 seconds · 1.2 km
- Whiskey Island Marina Entrance Light 2One red flash every 2 seconds · 1.2 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: U.S. Coast Guard Light List (opens in a new tab) · Checked