24 super efficient 100 watt Wolff tanning lamps in a soft contour, performs head to toe tanning that equals the power of a commercial unit, Biotech tunnel design, heavy duty extruded aluminum optiflect reflectors for maximum tan after tan cooling system. Dimensions: overall size 75.75"x35", minimum room size required, 5'x7'. Electrical requirements, 1 220 volt dedicated circuit, 1 20 amp circuit braker and 1 20 amp NEMA #6-20R recepticle.