The Smith-Victor K6RC 3-Light 1250 Watt Adapta-Light Home Portrait Kit (120VAC) has a 3/8" stand mount and a 10" general purpose reflector that provides smooth, clean light output with either a 250 watt or 500 watt lamp.
A 5" diameter reflector with lamp socket that yields a 60° beam with a 250 watt lamp. Designed to be used with a photoflood lamp of up to 500 watts, the Adapta-Lights quickly mount to any 3/8" light stand or stud. Supplied for use with 120VAC.