Federal Signal

FHL2-SC Headlight Flasher

  • Sale
  • Regular price $79.00

FHL2-SC Headlight Flasher 

A basic, dependable, high-side switched headlight flasher. 

This compact, reliable, relay-driven flasher offers basic functionality for popular emergency service vehicles in a simple, easily installed package. Electronic timing circuits achieve consistent dual flashing at 90 flashes per minute through its two 10-amp high-side switched circuits. The unit can flash 2—or—4 headlight systems with a total current draw of up to 20 amps. An extremely low standby current protects against unintentional activation.


  • Basic, relay-driven model is an economical solution for large fleets.
  • Splash proof high temperature housing provides protection from external conditions.
  • Activating the high beams automatically disengages the flasher.
  • Features low voltage/reverse polarity protection
  • Includes hardware necessary to mount the unit in a variety of positions


  • Vehicle Electrical System 12VDC
  • Maximum Output Current Two 10A circuits per side, 20A total
  • Circuit Switching High-Side
  • Standby Current (mA) 3
  • Low Voltage Protection Yes
  • Reverse Polarity Protection Yes
  • Operating Temperature (ºC) -35° to +76°
  • High Beam Deactivation Yes
  • Flash Patterns 144 fpm, 180 fpm, Random
  • Mounting Bracket Universal
  • Height 1.5 in (3.8 cm)
  • Length 4.0 in (10.2 cm)
  • Width 2.8 in (7.1 cm)
  • NOTE: Activation switch is not included. Flasher unit can be operated from any standard single control switch or multi-switch controller circuit capable of handling 20 amps.



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