Product Post: The Whelen ION T-Series DUO Linear LED Surface Mount Lighthead

The Whelen ION T-Series DUO Linear LED Surface Mount Lighthead provides high performance warning or illumination and features a sleek and low profile design, with a depth of only 1/2″. This super low profile light packs plenty of punch from it 12 Super-LEDs and linear style optics. The built-in 69 Scan-Lock flash patterns combined with its ability to synchonize not only with other IONs, but many other Whelen lightheads as well. The included Black flange makes it easy to surface mount this light just about anywhere using the 2 screws provided.


  • Extremely Low Profile, Ultra Thin, Surface Mount, Linear lighthead.
  • 12 LEDs available in Amber, Blue, Red, or White.
  • DUO LED colors are interleaved.
  • 69 Scan-Lock flash patterns.
  • The two color channels have separate trigger wires and can be programmed with different flash patterns.
  • Hard-coated lenses minimize environmental damage from sand, sun, salt, and road chemicals.
  • Synchronize to other Whelen sync products.
  • Easily surface mounts with two screws, included.
  • All DUO versions have a 5 wire 6″ pigtail.
  • Includes Black flange.


  • Voltage: 12 VDC
  • Amp Draw: 0.72 peak, 0.28 average
  • Certifications: SAE Class 1 Certified.
  • Size: 1.5″ (38mm) H x 0.5″ (13mm) D x 5″ (122mm) L.

Whelen Five Year Warranty