Whelen: Liberty II Series Lightbar


Liberty II Series Lightbar Redesigned and reinvented for exactly what your fleet needs, the new Liberty II builds on the Liberty’s reputation for excellent reliability and performance.

Download the full brochure – Liberty-II_tri-fold  –  Liberty-II_Series

  • Plug & Play into Whelen or vehicle manufactured controllers (WeCan only)
  • Photocell automatically dims the lightbar at night while still meeting SAE Class 1 requirements. Photocell is standard in DUO+ and optional in SOLO Series
  • Height without mounting feet is 2.8” (71mm)
  • Available with standard or low profile mounting feet
  • Standard lengths: 44” (110cm), 48” (123cm) and 54” (136cm)
  • Five year HDP® Heavy-Duty Professional warranty
  • Options
  • Rear single color or DUO+Traffic Advisor™
  • Take-downs available in 3, 6 or 12 Super-LED modules
  • Alley lights available in 3 LED vertical modules


  • SOLO™ – One level, single color • DUO+™ – One level, single color or two color interleaved


  • Aluminum top directs heat away from internal components and protects the lightbar
  • Center dividers with LIM (Liquid Injection Molded) seals protect internal components from water infiltration
  • Each model has one or two sealing points, assuring lightbar integrity in all weather conditions
  • Hard-coated lenses resist environmental damage for longevity
  • Point to point wiring between the I/O board and each lighthead allows for easy reconfiguration
  • Whelen’s Collimator™ patented optic design provides unbeaten light output
  • Advanced Thermal Design reduces the stress on LEDs during extended dwell time
  • Color filters available for full customization
  • Alternate center section models available in 48” and 54” models Alternate Center Options
  • Color domes for center and end sections with optional alley window
  • Single color or DUO+ color interleaved double reflector lighthead for rear center mount
  • GTT LED emitter available with or without take-downs, Strobe reflector available with or without take-downs •
  • 4 short take-downs or combination 2 short take-downs and 2 short warning light modules

Liberty II vs. Liberty







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Tahoe PPV 4WD ordering begins late Aug.   Production in October
Silverado SSV ordering begins mid to late Aug.  No production date yet.