You’ve got the light, now get the shape. 
 
This F10 Fresnel Attachment for LS 600 LED Series Lights allows smooth focusing of the light beams spread from a tight 15° to a 45° medium flood. The Fresnel's design has built-in ventilation to prevent overheating while thwarting spill light and is compatible with the F10 Barndoors.
 
The F10 Barndoors offer a means to control the beam spread of the Fresnel. The 8-leaf design gives even greater control than 4-leaf versions and provides clean cuts of light.