What are commonly used to weigh down light stands?

Sandbags are commonly used to weigh down light stands due to their practicality and effectiveness in providing stability. When filming, lighting equipment is often placed on stands that can be susceptible to tipping, especially in outdoor settings or where there is movement. Sandbags add weight, helping to anchor the stands securely, which prevents accidents and ensures that the lighting remains consistent throughout a shoot.

Using sandbags is advantageous because they are flexible and can easily be placed around the base of the stand without obstructing the surrounding area. They can be filled with sand, making them heavy enough to provide adequate support, yet still manageable to transport. Other options, such as bricks or weights, might not offer the same flexibility and ease of use. Ropes, while adjustable, do not directly contribute weight or stability to the stands themselves.