The Photo Lighting System include With two 7.7 feet heavy duty light stands two 30 watts day-light balanced 5000K fluorescent bulbs (each one is equivalent to 125 W incandescent light). The lighting of the top-spiral model is stable and bright enough. It is cool and flick-free. Two AC Swivel adapters with Umbrella Mount and standard sockets for bulbs. Two 40" white shoot-through umbrellas.