Description
High-Performance, Dual-Color Warning in a Slim Profile
The Whelen TLI2 DUO™ Lighthead delivers exceptional dual-color warning performance in one of the thinnest profiles available. As part of Whelen’s advanced T-Series lineup, the TLI2 combines Linear Super-LED® optics with a .5″ ultra-slim design, making it ideal for tight installation environments on law enforcement, fire/EMS, and commercial fleet vehicles.
Low-Profile, High-Visibility Design
- Depth: Only .5″ deep — perfect for tight spaces and stealth installations
- Rugged Housing: Hard-coated lens resists UV, impact, and road debris
- Surface Mount: Installs with two screws using the included black flange
- Wide Viewing Angle: Linear Super-LED® optics ensure maximum on-road visibility
Advanced DUO™ Color Technology
The TLI2 provides two full-power LED colors in a single lighthead, enabling efficient, multifunction warning:
- Selectable dual-color output
- Enhanced clarity and brightness with Linear Super-LED® optics
- Sync capability with other Whelen LED products
- Certified to SAE Class 1 with IP67 weather protection
Optimized for Professional Upfitting
- Includes a 4-wire, 6″ pigtail for simplified wiring
- Designed for police, fire, EMS, public works, and commercial fleets
- Durable sealed electronics ensure long-term reliability
- Backed by Whelen’s 10-year warranty
Technical Specifications
- Voltage: 12 VDC
- Current Draw: 0.72A (peak), 0.28A (avg)
- Dimensions: 1.5″ H × 5.2″ W × 1.5″ D
- Optics: Linear Super-LED®
- Housing: Hard-coated lens, IP67 weatherproof
- Mounting: Surface mount (2-screw)
- Certifications: SAE Class 1, IP67
- Warranty: 10 Years
Ideal Applications
- Law enforcement patrol vehicles
- Fire and EMS response units
- Utility and municipal fleets
- Security vehicles and commercial work trucks
















































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