Description
High-Performance Duo-Color Warning
The Whelen ION Duo Blue/White model delivers industry-leading brightness in a compact, low-profile housing designed for demanding fleet, law enforcement, and emergency vehicle applications. The Duo configuration provides two powerful colors with independent control, allowing agencies to tailor outputs to specific mission requirements.
Rugged, Low-Profile Construction
Engineered with a hard-coated lens and durable housing, the ION Duo withstands harsh weather, debris, and continuous duty cycles.
Flexible Flashing & Sync
Featuring Whelen’s Scan‑Lock™ flash pattern library, the ION Duo offers numerous patterns with synchronization capability for coordinated multi-light setups.
Technical Highlights
- Duo-color output: Blue/White
- Surface-mount design
- Super‑LED optics for maximum visibility
- Scan‑Lock™ flash pattern selection
- Sync-ready
- Durable hard-coated lens
Ideal Applications
- Police vehicles
- Fire & EMS fleets
- Utility and municipal vehicles















































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