The industry standard portable 4' x 4 bank LED Flo-Box system is now hitting the mainstream. At just under 10 pounds, this unit comes ready to plug in to wall power utilizing less than 1 amp! The line mounted on/off switches allow control of two tubes at a time and includes a handy dimmer knob. Rugged LED tubes will probably outlive you and won't break like glass fluorescents. Comes with color corrected daylight 5600 kelvin tubes. Tungsten (3200 kelvin) tubes can be purchased separately.