Deluxe Series - Double Linear Strip with 10,000KTM and Actinic Compact Fluorescent Lamps, 2 on/off switches, 2 - 8 foot power cords for separate timers, 2 cooling fans (except #53100), built-in ballasts, sleek aluminum housing (50.5"x7.75"x2.75"), highly-polished reflector and acrylic lens cover.