Standing a mere 2-inches tall, the Allegiant light bar is packed with Federal Signal exclusive technologies and options to provide a superior multicolor warning.

Light bar solution fit for a variety of applications
Designed to keep you safe on the road, the Allegiant includes (28) high performing, attention-getting flash patterns, built-in SignalMaster, and impressive flood light capabilities. The Allegiant features a bed light option which shines a steady work light down from the light bar onto the bed of the truck for added visibility for operators. Takedown and alley positions are also configurable to fit your needs.

Allegiant Work Truck bed light option

Patented Solaris® and ROC (Reliable Onboard Circuitry™)
Built with Solaris® LED reflector technology, the Allegiant light bar is engineered to significantly increase off-axis warning and maximize the LED light source. ROC technology minimizes potential failure points in the light bar — replacing wires, connectors, and assemblies with PCB assemblies to reduce labor repair time.

Programming is made easy with FSJoin in conjunction with Pathfinder® light/siren controller. Through the Convergence Network Configuration Software, multiple warning devices can be programmed to synchronize in order to create a unified vehicle solution (12V serial controlled models only).


SpectraLux® Lights the Way
Exclusive to Federal Signal, the SpectraLux® multicolor LED technology provides the ability for a LED light source to change color while in operation.

Allegiant light is shown with full flood option

Easy to Install and Operate
For maximum performance, the FS Convergence Network provides ‘plug-n-play’ installation. Utilizing standard RJ45 connections, the Allegiant can be easily programmed using a SmartSiren® Platinum system or 6-button serial controller. With control head programmability, the user can customize the keypad to meet their needs. The Allegiant is also available with a traditional cable (discrete). The discrete version features front/rear control, two modes of operation and low power mode. Options including front flood, rear white lighting, bed light and S/T/T are available.


Voltage 12/24 VDC
Operating Temperature Range -40˚C to 65˚C
Current Draw (12V, varies by flash pattern ALGT45 9 A
ALGT53 11 A
ALGT61 13 A
ALGT70 15 A
Current Draw (24V, 50% flash rate) ALGT45 5 A
ALGT53 6 A
ALGT61 7 A
ALGT70 8 A
Physical Specs. (LxWxH) ALGT45 - 44.5 in (113.0 cm) x 11.2 in (28.4 cm) x 2.0 in (5.1 cm)
ALGT53 - 52.7 in (133.9 cm) x 11.2 in (28.4 cm) x 2.0 in (5.1 cm)
ALGT61 - 60.9 in (154.7 cm) x 11.2 in (28.4 cm) x 2.0 in (5.1 cm)
ALGT70 - 69.1 in (175.5 cm) x 11.2 in (28.4 cm) x 2.0 in (5.1 cm)
Ship Weight ALGT45 - 23.0 lbs (10.4 kg)
ALGT53 - 26.6 lbs (12.1 kg)
ALGT61 - 30.2 lbs (13.7 kg)
ALGT70 - 33.8 lbs (15.3 kg)


Allegiant police lightbar (2:21)
Allegiant police lightbar (Spanish) (2:33)
Allegiant lightbar bed light feature (:43)
Allegiant Flash Patterns for Police (8:43)
Allegiant 53-inch Flash Patterns for Work Trucks (2:37)
Allegiant Light Bar Cruise and Low Power Feature (:58)
Allegiant 61-inch Flash Patterns for Work Trucks (5:44)
Allegiant™ ROC Technology (:48)
Allegiant™ Light Bar SpectraLux Feature (:53)
Allegiant™ Light Bar Standard vs Multi-Position Alley (1:22)
FSJoin: Downloading the Convergence Network Configuration Software (1:01)
FSJoin: Introduction to the Convergence Network Configuration Software (8:14)
FSJoin: Prebuilt Legacy Patterns and Basic Custom Programming (4:21)
FSJoin: Diagnostics (2:01)