A light assembly includes a case, a light member, an adjustment unit and a reflection unit. The light member is located on the support member at the center of the case, and the adjustment unit and the reflection unit are located within the case. The reflection unit includes multiple first reflection members, and multiple second reflection members. The light member is located at the position surrounded by the respective root portions of the first and second reflection members. The first and second reflection members are pivoted relative to the light member when the adjustment unit is operated.