... following features: 1. Long life-span; 2. High brightness; 3. red, green, blue, white, yellow, etc. led digital display are available ... example. They are selectable in colorful emitting lights, such as red, yellow green, pure green, blue, white etc. Surface: Black face ... /Grey face with white/red segment. Features:1. 0.40inch(10.16mm) Digit Height.2 ...