Features three variable speeds on a rotary control switch to deliver high velocity airflow for quick ventilation and evaporation of moisture from various structures. Depending on speed level, GFCI outlets allow you to daisy-chain 4 to 6 units at once on a 15 amp circuit, while a single unit only uses 2.5 amps at maximum setting. Dimensions: 173/8" L x 15" W x 175/16"H. Cord Length: 16'.