Hydroponic LuxStar Plant Grow 4' T5 Fluorescent Lights (6 x Bloom Bulbs) Completely assembled and ready to use! Build in ballast wiht safety features. This unit includes (6) 54 Watt 3000K InterLux Bloom Bulbs. Perfect for the flowering plant stage. The LuxStar6 measures 47"L x 18.5"W x 2.25"H