Linear Super-LED® optics; SOLO™ or DUO™ (two color interleaved) technology; Available in Amber, Blue, Red, and/or White; Hard-coated lenses; Synchronize to other Whelen sync products; Easily surface mounts with two screws; Includes Black flange and a 4 wire 6” pigtail; SOLO models are available in single or split colors; Available with SAE Class 1 Certified Smoked lenses