| NOS | NIMA | |
IHO |
|---|---|---|---|
 |
 |
Lights exhibited only when specially needed (for fishing vessels, ferries), and some private lights |
 |
 |
Daytime light (charted only where the character shown by day differs from that shown at night) |
 |
|
| Fog light (exhibited only in fog, or else character changes in fog |
 |
||
| Unwatched (unmanned) light with no standby or emergency arrangements |
 |
||
| Temporary | (temp) | ||
| Extinguished | (exting) | ||