Westcott 4823 Spiderlite TD5 Large Light Kit Ability for use with either Halogen or Fluorescent Lamps Fluorescent Lamps = 23 watts @ 5500 Kelvin (E26 Base) Halogen Lamps = 150 watts @ 3200 Kelvin (E26 Base) Ability to quickly change not only color temperature, but environment temperature as well. Three seperate controls allow you to run multiple combinations of lamps together with no shift in color temperature.