This paper studies the advantages of composing visual elements with odd numbers rather than even numbers through comparing odd cases and even cases in lighting design. It also surveys whether people prefer odd or even numbers of arranged lights in stage lighting. Much evidence suggests that using odd numbers in visual composition has been preferred for a long time in visual design, including photography, film, graphic design and painting. This preference is evident in each artistic area; however, the disciplinary and theoretical evidence is not sufficiently strong to support it. The theoretical basis for the aesthetic value of odd numbers is formed by combining the research about symmetry and aesthetic preference from various scientific areas with an analysis of the trend in visual design. The effects of lights arranged in odd and even numbers are compared via experiments. This research explores whether the universal aesthetic preference is applicable in visual design and provides a new guideline for lighting design.