What property should be accessed through code to create a strobe effect?

To create a strobe effect, accessing the intensity property is essential as it directly influences how bright the light source appears in the scene. By varying the intensity over time, you can simulate a rapid flickering or flashing effect commonly associated with strobe lights. This is effectively done by manipulating the intensity values in your code, allowing you to create the desired timing and rhythm that characterize strobe lighting.

The other properties, while related to light, do not provide the same capability:

• Alpha generally deals with the transparency of materials or UI elements, which is not relevant for creating a strobe effect.

• Brightness is often more of a conceptual term and can vary based on context; it doesn't have a direct correlation with the light properties in Unity.

• Duration refers to how long something occurs but does not directly alter the visual intensity of a strobe effect.

Hence, to achieve a strobe effect, adjusting the intensity property is the most effective and appropriate approach.