The KT500U 2-Light 500 Watt Thrifty Basic Umbrella Kit (120V) is built around 2 standard Adapta-Lights which feature medium screw base phenolic sockets, 10' 2-wire cords and 5/8" stand mount. The reflectors are hand-spun and chemically etched to maximize light output. The exteriors have a photographic black, baked-on enamel finish. Two 32" white umbrellas are included for softer lighting effects.