Code 3's 21TR and 21TR Plus lightbars feature all new Torus LED Technology  for great directional and off-angle performance in a 2100 lightbar package. The standard 21TR delivers all the features the 2100 has been known for and the 21TR Plus provides a full featured lightbar for those who need additional lighting capabilities. These deluxe features include the same central controller features and options that are in the Defender and RX 2700CC lightbars. 21TR Plus also includes 23 flash patterns, flashing takedown and alley lights, NarrowStik function, corner cruise lights, and more.