Whelen BSFW49X Inner Edge FST™ Interior Lightbar, a vehicle-specific upper-front warning-light system designed for professional emergency and fleet applications. This two-piece system provides dedicated driver- and passenger-side light units while maintaining a clean, integrated installation inside the vehicle.

The BSFW49X features 12 LED lamps and is compatible with Whelen SOLO™ or DUO™ lighthead configurations. Its vehicle-specific housing helps minimize flashback into the passenger compartment while providing highly visible emergency warning output through the windshield.

Key Features

• Whelen Inner Edge FST™ interior warning-light system

• 12-lamp configuration

• Upper-front, two-piece design

• Individual driver- and passenger-side units

• Available with SOLO™ or DUO™ lightheads

• No take-down lights

• Vehicle-specific housing helps minimize interior flashback

• Designed for clean, integrated upper-front installation

• Compatible with Whelen control and warning-light systems

• Designed for professional emergency, law-enforcement, fire, EMS, and fleet applications

Vehicle Compatibility

• 2019–2026 Chevrolet Silverado 1500 PPV

• 2023–2026 Chevrolet Silverado 2500/3500 HD