Police 21" Allegiant® Light Bar

Police 21" Allegiant® Light Bar

  • Low-profile, 21" mini-light bar
  • Single- and dual-color capability
  • Serial models available with front-flood, rear-flood, takedowns, alley lights, work lights, bed light, and cruise
  • Discrete models available with takedowns, work lights, and bed light
  • (28) flash patterns; independently controlled front and rear flash patterns 
  • Low-power mode 
  • 12 Vdc 
  • Flat, low-profile permanent, magnet, and 4" riser mounting options 
  • Five-year warranty

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  • SAE Class 1 (Amber, Blue, Red, White)
  • CCR Title 13 (Amber, Blue, Red)
  • NFPA 1901  (select models)
  • IP65

Built for Versatility and Performance
The Federal Signal 21" Allegiant® is a low-profile, dual-color, mini-light bar solution that provides a superior warning signal for police applications. For example, this mini-light bar can be used as a primary warning device on off-road vehicles used for security and patrol or as wing lights on law enforcement vans.

Packed with Technology to Keep You Safe
Through the Federal Signal Solaris LED reflector technology, the 21" Allegiant mini-light bar is engineered to significantly increase off-axis warning and maximize the LED light source to eliminate dark spots and increase visibility while on the road. In addition, the patented ROC (Reliable Onboard Circuitry) technology is built to minimize potential failure points in the light bar. Wires, connectors, and assemblies have been replaced by PCB assemblies—reducing labor repair time and increasing the road time for vehicles.

Features Made for the Job
The 21" Allegiant can be configured specifically to fit your needs. It comes equipped with (28) high-performing selectable flash patterns and a low power mode for added visibility. The 21" Allegiant offers optional takedowns and work lights features. Additionally, the 21" Allegiant light bar features the exclusive bed light option, which shines a steady work light down from the light bar onto the bed of the truck for added operator visibility.


Amp Draw 7.0 A (50% Flash Rate)
Operating Voltage 12.8 Vdc
Operating Temp. -40˚ to +149˚ F (-40˚ to +65˚ C)
Flash Patterns 28
Physical Specifications
Length 20.7 in (52.6 cm)
Width 11.2 in (28.5 cm)
Height 1.8 in (4.6 cm)
Ship Weight
  10 lb (4.54 kg)

Ordering Info

Model Types
ALGT21-POLICE221-inch, Blue warning, takedowns, Clear domes, low-profile permanent mount, Convergence Network compatible
ALGT21-POLICE121-inch, Red/Blue warning, takedowns, Clear domes, low-profile permanent mount, Convergence Network compatible