A tail light for an automobile includes a plurality of first illuminating elements and a plurality of second illuminating elements. The first illuminating elements are arranged to form a logo pattern of the automobile, and each of the first and second illuminating elements are configured for providing an adjustable illuminating brightness. The tail light is capable of selectively operating between a braking state and a non-braking state. In the braking state, the illuminating brightness of the first illuminating elements is greater than that of the second illuminating elements. In the non-braking state, the illuminating brightness of the first illuminating elements is less than that of the second illuminating elements.