The number of LED obstruction lights recommended per level depends on the shape and size of the building (L - W):
| L and W < 45m | Use 4 beacons (one obstruction light / corner) |
| 45m < L < 90m | Use 1 additional lamp n the middle of L (see picture) |
The number of obstruction lights levels depends on the building height (H):
| H < 45m | A level of low intensity obstruction lights will be used |
| 45m < H < 108m | 2 levels of lights will be used: upper level with medium intensity obstruction lights, lower level with low intensity obstruction lights |
| 108m < H < 203m | 4 levels of lights will be used: Levels 1 and 3 with low intensity, and Levels 2 and 4 with medium intensity (see image) |
The number of LED obstruction lights recommended per level depends on the diameter of the structure (D):
| D < 6m | Use 3 obstruction lights (120°) |
| 6m < D < 31m | Use 4 obstruction lights (90°) |
| D > 31m | Use 6 obstruction lights (60°) |
The number of lights levels depends on the height of the structure (H):
| H < 45m | Use low intensity obstruction lights (see image) |
| 45m < H < 108m | 2 levels of obstruction lights will be used: upper level with medium intensity obstruction lights, lower level with low intensity lights (see image) |
| 108m < H < 203m | 4 levels of lights will be used: Levels 1 and 3 with low intensity obstruction lights, and Levels 2 and 4 with medium intensity obstruction lights (see image) |
The number of LED Obstruction lights recommended per level depends on the diameter of the structure (D):
| Always | Use 1 beacon LED Obstruction lights (see image) |
| D < 6m | Use 2 LED Obstruction lights (at opposite diagonals) |
| D > 6m | 4 LED Obstruction lights (per corner) |
The number of levels depends on the height of the structure (H):
| H < 45m | Use low intensity obstruction lights (see image) |
| 45m < H < 108m | 2 levels of beacons will be used: upper level with medium intensity obstruction lights, lower level with low intensity obstruction lights (see image) |
| 108m < H < 203m | 4 levels of beacons will be used: levels 1 and 3 with low intensity beacons, and levels 2 and 4 with medium intensity beacons |
The number of LED obstruction lights recommended per level depends on the diameter of the structure (D):
| Always | Use 1 obstruction light on top (see image) |
| D < 6m | Use 2 obstruction light (at opposite diagonals) |
| D > 6m | 4 obstruction light (per corner) |
The number of levels depends on the height of the structure (H):
| H < 45m | Use low intensity obstruction light (see image) |
| 45m < H < 108m | 2 levels of lights will be used: upper level with medium intensity, lower level with low intensity obstruction light (see image) |
Wind turbines will be illuminated using 2 medium intensity LED obstruction lights above the generator cabin.
Both lights will flash simultaneously and will be positioned at the horizontal separation to ensure the visibility of at least one obstruction light from the aircraft in any direction.
Intermediate levels or other markings may be omitted for these structures.
