The Whelen Universal Flasher PLF46 delivers reliable, heavy-duty performance for emergency, commercial, and utility vehicles. Built for long-life operation, they work seamlessly with LED, Super-LED®, and halogen lightheads to provide critical visibility and warning signals in any environment.

Equipped with multiple channels and outlets, these flashers offer flexible configurations with selective switching—allowing independent control of paired lights. Choose from alternating, simultaneous, or synchronized operation, along with a variety of selectable Scan-Lock flash patterns to match your needs.

For added safety, built-in short circuit and thermal protection ensure continuous, dependable operation even in demanding conditions. With straightforward installation and versatile compatibility, our Universal Flashers are the ideal solution for fleets that need adaptable, high-performance lighting controls to enhance visibility and safety on the road.