Whelen Flashers

Whelen Flashers

Command massive arrays of auxiliary warning lights with absolute precision using the Whelen PLF46 Programmable Flasher. When upfitting large commercial or utility vehicles, fleet technicians often run into the amperage limitations of standard flashers when trying to synchronize multiple heavy-draw LED modules. The PLF46 solves this. This heavy-duty, solid-state unit provides 4 inputs and 6 positive-switching outputs, capable of handling a colossal 36 amps total (6 amps per output). Fully programmable via Whelen Command software, it allows you to easily manage complex flash patterns and integrate advanced DVI lighting logic into non-networked systems.

Key Features & Upfitter Specs

• High-Capacity Outputs: Features six robust outputs capable of pushing 6 amps each (36 amps total capacity), easily driving large arrays of high-intensity warning lights without relays.
• Advanced Programming: Equipped with a USB-C port, allowing technicians to fully program the 62 available Scan-Lock flash patterns directly via the intuitive Whelen Command software.
• DVI & Steady-Lock Compatible: Supports Dynamic Variable Intensity (DVI) patterns for smooth nighttime dimming, and Steady-Lock support for overriding flash patterns with a steady burn.
• Severe-Duty Encapsulation: The 100% solid-state circuitry is completely potted in epoxy, earning a strict IP67 rating for total resistance to moisture, road chemicals, and extreme fleet vibration.
• Built-In Protection: Features integrated short-circuit and thermal protection on every channel, protecting the flasher and the vehicle's electrical system from catastrophic failure.