Interfit INT116 Super Coolite 5 with Reflector, 24-Inchx 24-Inch Softbox and 5 28 (Black) Fluorescent lamps run cool and flicker free. Bulbs are daylight balanced for use with film or digital. individual switches on the back of head allow you to run 1 or all five bulbs at the same time. Included softbox gives great soft light quality Light head has equivalent 600 watt output while using less power.