Whelen M4 DUO Clear Lens Amber/White
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.
- Compact, Dual-Function Design: Sleek design combines powerful warning and driving lights in one unit
- Advanced Optics: Unique lens shape and patented Linear-LED® designed reflector assembly
- Unmatched Performance: Delivers high-intensity warning with energy-efficient low current consumption
- Cutting-Edge Technology: Designed with industry-leading Whelen technology for optimal performance and reliability
| Optics | Linear Super-LED®: SOLO™, Split-Color and DUO™ models available |
| Technology | SmartLED®: Self-contained electronics power and flash LEDs without the need for external flashers, ballasts, or power supplies Dynamic Variable Intensity™ (DVI™): Gradually adjusts light intensity for improved nighttime visibility and safety (SOLO and DUO models only) E Block™: Patented watertight seal prevents moisture from entering the lighthead (DUO models) Steady-Lock®: Automatically set flash pattern to Steady when paired with a Core® system Scan-Lock™: Advanced flash pattern control Sync: Connect multiple Whelen devices for synchronized or alternating flash patterns |
| Flash Patterns | SOLO & DUO Models: 150 Scan-Lock™ flash patterns Split-Color Models: 64 Scan-Lock™ flash patterns V-Series Models: 25 Scan-Lock™ flash patterns |
| Control | Steady or SmartLED |
| Customization | Lenses: Clear or Color Flasher: Built-In or Separate Optional Additions: Black or Chrome Flange, 400 Series Mounting Adapter, Brush Guard, Universal “L” Mounting Bracket |
| Construction | Hard-Coated Lenses: Resist environmental damage from sand, sun, salt, and road chemicals Conformal Coated Electronics: environmental, moisture, and vibration resistance E Block™: Patented watertight seal prevents moisture from entering the lighthead (DUO Models) |
| Mounting | Surface |
| Included Cables & Hardware | 18 AWG 9" (22.86 cm) Pigtail |
| Certifications | SAE Standards SAE Class 1 SAE J595 SAE J845 Emergency Vehicle Standards NFPA 1900 KKK-A-1822F Environmental IP67 Regulatory Compliance CA Title 13 R10 R65 |
| Warranty |
10-year Please see our warranty statement for more information here. |
| Voltage | 12/24 VDC |
| Amps | Linear Models: 1.5 (peak), 0.6 (avg.) V-Series Models: Warning: 1.0 (peak), 0.4 (avg.) Perimeter: 0.77 |
| Size | Linear Models: Width: 5.49” (13.94 cm) Height: 3.38” (8.59 cm) Depth: 1.40” (3.56 cm) V-Series Models: Width: 5.49" (13.94 cm) Height: 3.38" (8.59 cm) Depth: 1.80" (4.57 cm) |
