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Model 191XL is a hazardous location flashing signal light that comes standard in flashing mode and is field configurable to steady-burn mode for maximum functionality.

Federal Signal’s super bright LED array used in the 191XL produces intense light output and 50,000 hours of service. Increased shock and vibration resistance add to this unit’s rugged industrial portfolio of features.
Federal Signal 191XL


3/4" Pipe
24VAC/DC; 120VAC; 240VAC
Operating Current
0.40 Amps at 24VAC/DC; 0.21/0.13 Amps at 120VAC; 0.13 Amps at 240VAC & 277VAC
In-Rush Current
1.75 Amps, 5.0mS, at 24VAC/DC; 2.0 Amps, 0.25mS, at 120VAC and 240VAC
In-rush Current
9.75 Amps, 0.25mS at 277VAC
Light Source/Lamp Style
LED Array
Flash Rate/Minute
Operating Temperature Minimum
-58 °F
Operating Temperature Maximum
150 °F
Enclosure Rating
Type 4X
Ingress Protection (IP)
Dome Guard
Dome Colors
Amber, Blue, Green, Red
Net Weight
4 lb
Shipping Weight
4.25 lb
9.250 in
5.500 in


  • Available in 24VAC/DC, 120-240VAC and 277VAC
  • Five lamp/lens colors: Amber, Blue, Clear, Green and Red
  • Flashing mode standard, configurable to steady-burn
  • 50,000 hours, vibration-resistant LED lamp
  • Dome guard included
  • Available in 3/4-inch NPT pipe mount or surface mount
  • Type 4X, IP66 enclosure
  • IP69K compliant
  • Marine Listed
  • UL and cUL Listed for Class I, Division 2, Groups A, B, C and D; Class II, Division 1, Groups E, F and G; Class III