Illuminated 12VR 12mm Panel Potentiometer CTS Electronic Components Illuminated 12VR 12mm Panel Potentiometer offers a +10mA at 5VDC switch rating, a ±20% resistance tolerance, and a compact 12mm package size. The 12VR series features a variety of standard resistances and tapers. These potentiometers also have single, dual, and tri-color LED-backlit shafts. CTS Electronic Components Illuminated 12VR 12mm Panel Potentiometer is ideal for consumer portable electronics and commercial appliances.