The Power Tower from Bull Dog Power Products is a system of portable dual-headed light fixtures featuring high intensity discharge metal halide lights that produce up to 220,000 lumens, enough illumination to cover 218,000 square feet. The super bright metal halide light fixtures are swivel mounted and spring loaded to cushion the bulb and absorb jobsite dings and dents. The Power Tower mast telescopes up to a maximum height of 12 feet, but with the mast removed the unit measures only 19 inches high. Masts are 2-inch box channel steel with trigger locks for easy set-up, takedown and secure height adjustment.