Cab Roof Light Kits are available in amber or clear. Kits meet SAE specifications when used with included bulbs. The two outside lights (clearance lights) and three inner ones (marker lights) give oncoming traffic a visual fix on the truck for additional safety. 
All kits come complete with lights, bulbs, wire harness, quick splice connectors and a dash mount panel with toggle switch plus indicator light which allows the Cab Roof Lights to be operated independently of the headlights.
LED Cab Roof Light Kit benefits:
LED lights have no filament, which means they are less sensitive to vibrations, and they can last up to 20,000 hours. They use only 15% of the energy required by incandescent bulbs, reducing the load on the truck's charging system, and less heat is emitted.