CM-1 Features●The three-primary-color fluorescent lamp iscontrolled by good lighting sensor, electronic inductor and shading.●Flash eliminated. Illumination is adjustable.●Time and alarm automatically. Test continuously.●Used by one person at the same time. CM-2 Features●The three-primary-color fluorescent lamp iscontrolled by good lighting sensor, electronic inductor and shading.●Flash eliminated. Illumination is adjustable.●Time and alarm automatically. Test continuously.●Used by two person at the same time.