The invention relates to a family of devices to be used for sanitizing switches. The device is placed around the periphery of the switch and contains a means for exposing the switch touch surfaces to UV light source local to the switch in order to maximize the exposure of the switch to the UV light source. Because the light is localized and directed toward the switch contact surfaces, the device may be used continuously while humans or animals are present without detrimental exposure to the UV light, ensuring a sanitary switch contact surface so as to reduce or prevent infection or disease resulting from transference of contamination from one person to another via contact transference with said switch surface.