One of our original LED Warning Lights the Alectrona is a 3 LED linear design.
Features

Dimm.   light output is dimmed to 80% for night work

 
Alectrona
Alectrona
3 LED linear lighthead has 3 intensely bright Gen 3 LEDs and super wide angle linear optics to get you noticed. The lighthead is designed for internal or external applications






Available in Red, Blue, Amber, White, and Green
3 x generation 3, 3 watt high intensity LED's
 12-24 volt, 18 flash patterns
 Superior optics 200+ degree visibility
 Includes mounting hardware
 SAEJ595 Class 1, CA Title 13, IP67