The 650 Watt Plus Fresnel features smooth focusing, and a bright, even beam.
Specs as follows:
 
LAMPHEAD CONTENTS
Lamp Housing without Bulb (purple grey & silver color)
4-leaf Rotatable Barndoor with Safety Wire
Ø130mm (5-1/8 in.) Fresnel Lens
In-Line Switch
Inlet Cable 4m (13 ft.)
Stirrup with Ø16mm (5/8 in.)
 
ACCESSORIES
4-leaf Rotatable Barndoor
Filter Frame
Set of 4 Scrims Ø127mm (5 in.) : Full Single, Full Double, Half Single, Half Double
Scrim Bag
Variable Snoot
Safety Cable (for lamphead)