At what height do strobes become less effective, prompting the need for adjustment?

Strobe lights are crucial for visibility and safety, particularly in various signaling and warning applications. As the height of the strobe increases, the angle at which the light disperses from its source also changes, affecting its effectiveness in being seen from different distances and directions. At around 30 feet, the light begins to lose its effectiveness due to the larger coverage area that it needs to illuminate and the diminishing intensity perceived from greater distances.

In practical terms, adjustments might include altering the angle of the strobe or increasing the intensity to ensure visibility. Heights above this level may further require more significant changes, but the 30-foot mark is commonly recognized as a threshold where adjustments are often necessary to maintain the expected visibility standards for safety and communication purposes.