Whelen M4 Series - Internal Flasher & Synchronize Feature - White LED

The M4 lighthead features a compact rectangular design that packs a powerful punch, delivering high-intensity illumination ideal for fire, EMS, law enforcement, and commercial vehicles. Like others in our popular M Series®, the M4 features Linear Super-LED® technology for bright, consistent light output, providing superior visibility in critical situations. This lighthead incorporates Dynamic Variable Intensity™ (DVI™) light patterns, automatically adjusting brightness levels during nighttime operations. This feature enhances safety by gradually increasing or decreasing light intensity, effectively alerting oncoming traffic to the vehicle’s presence and creating safer scenes. Available in both single- or dual-color models, the M4 can be configured for primary warning or a combination of primary warning and scene lighting. Its hard-coated, impact-resistant lenses ensure durability against sand, sun, salt, and road chemicals, making it a reliable choice for any environment.

FEATURES

• SAE Class 1 Certified (warning)
• Single- or split-colors available
• Clear or Color lenses available
• Choose from multiple Scan-Lock™ flash patterns including CA Title 13 compliant patterns
• Meets KKK-1822F, NFPA 1900, NFPA 1917, SAE, and EC65 specifications
• DUO™ models include DVI™ light patterns and our patented E Block™ technology
• Choose flash patterns from solid, left/right, top/bottom, in/out, or diagonal sequencing
• Brake/Tail/Turn, Turn, and Back-Up lights meet applicable SAE requirements
• Available in steady-burn or with an internal flasher
• STEADY-LOCK™ sets lightheads to Steady automatically when used with a CenCom Core® control system
• Warning lights with internal flasher have sync and low-power functions
• Hard-coated lenses resist environmental damage from sand, sun, salt, and road chemicals
• Surface mount via 2 screws for easy installation
• A variety of mounting brackets and optional Chrome or Black flanges are available
• 10-year warranty

M4

• Solid-color models have 150 Scan-Lock™ flash patterns, including DVI™
• Split-color models have 64 Scan-Lock flash patterns
• Combination Warning and Driving Light
• Dimensions: 5.49” (139mm) W x 3.38” (86mm) H x 1.40” (36mm) D