Whelen M4 DUO Series Dual Color Warning Light

Whelen Engineering has added split-color functionality to their popular M4 Series warning lights to create the M4 DUO Series. As the name implies, this enhanced light now offers dual color warning lights in a powerful LED package. Like the rest of the M Series, this 5.5”W light is designed for high-visibility and features Whelen's advanced linear optics for wide-angle visibility in a space-saving design.
Suitable for vertical or horizontal orientation on a vehicle, the M4 DUO is ideal for emergency, towing and utility trucks where effective lighting is needed in limited mounting spaces. Equipped with Whelen’s E Block™ and DVI technology, the M4 Series operates efficiently on 12/24V systems without excessive battery drain, providing bright, sustained lighting. Reduced power consumption means less strain on vehicle batteries.
Built for durability and reliability, this surface-mounted light features a hard-coated lens for reduced maintenance and long-term viability. Backed by a 10-year warranty, the sealed electronics and lenses make the M4 Series resistant to damage from dust, debris and harsh weather. Count on quality and clarity over the life of the light and appreciate the minimized downtime due to unnecessary light repairs.
These SAE Class 1 lights are available with chrome or black bezels for added protection and aesthetics. Choose from 24 color/lens/bezel combinations and up to 64 ScanLock™ patterns. The light’s syncing capabilities allow users to adjust lighting to produce a cohesive signal at any high-traffic scene. This customization creates a highly visible, coordinated warning system that maximizes awareness and operational safety in different environment.

Certifications:

SAE Class 1, KKK-1822F, NFPA 1901, NFPA 1917 EC65

Dimensions: 3.4″H x 5.5″W x 1.4″D

Voltage: 12/24

24 color/lens/bezel combinations

Syncing capabilities

64 ScanLock patterns

Hard-coated lens

E Block™ technology

Surface mounted

Vertical or horizontal orientation

Includes two installation screws

Chrome or black flanges available

10-year warranty