Superior coral growth versus LED lights! Amazing Color! German Made Radium Metal Halide Lamps - 250 Watt or 400 Watt ANSI M80 or M135 Ballasts 4 - High Output Actinic Royal Blue 460nm T5 Lamps Independent lighting controls for Metal Halides vs T5! Natural looking shimmer effect! No disco ball look! No shadowing! Includes all bulbs and all ballasts! A tried & true lighting solution with amazing results! Available in 2 ft, 3 ft, 4 ft, 5 ft & 6 ft Built to order in the USA!