, Lighting Zone 4 and 5 Work/Scene: Excellent work light or scene light with an extremely smooth 120 degree circle that projects about 40ft.This pattern is not suitable for driving. The Driving/Combo pattern is equipped with both Driving, 42 degree, and spot, 9 degree, optics to provide you with a smooth blend of light for both near field applications and distance, Lighting Zone 3 Wide Cornering: BD was the first to develop a pattern specifically for cornering, dust and/or fog conditions.